SCHEDULE 14A
                                 (RULE 14A-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION
           PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                     EXCHANGE ACT OF 1934 (AMENDMENT NO. 3)

Filed by the registrant    |X|
Filed by a Party other than the Registrant |_|

Check the appropriate box:
     |X|  Preliminary Proxy Statement       |_|  Confidential, For Use of  the
     |_|  Definitive Proxy Statement             Commission Only (as permitted
     |_|  Definitive Additional Materials        by Rule 14a-6(e)(2))
     |_|  Soliciting Material Pursuant to             
          Rule 14a-11(c) or Rule 14a-12 

                                  XTRANA, INC.
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                (Name of Registrant as Specified in Its Charter)


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    (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

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     |X|  No Fee Required
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          0-11.
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     (2)  Aggregate number of securities to which transactions applies:

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     (3)  Per unit  price  or other  underlying  value of  transaction  computed
          pursuant to Exchange  Act Rule 0-11 (set forth the amount on which the
          filing fee is calculated and state how it was determined):

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     (4)  Proposed maximum aggregate value of transaction:

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     (5)  Total fee paid:

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     |X|  Fee paid previously with preliminary materials:

$2,422 fee paid in  connection with Preliminary Proxy Statement filed on May 16,
2005.
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     |_|  Check box if any part of the fee is offset as provided by Exchange Act
          Rule  0-11(a)(2)  and identify the filing for which the offsetting fee
          was paid  previously.  Identify  the previous  filing by  registration
          statement  number, or the form or schedule and the date of its filing.

     (1)  Amount previously paid:

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     (2)  Form, Schedule or Registration Statement no.:

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     (3)  Filing party:

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     (4)  Date filed:

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                                  XTRANA, INC.
                                  P.O. BOX 688
                             SEDALIA, COLORADO 80135
                                 (303) 466-4424


                                                                 August __, 2005
Dear Stockholders:

I am  pleased  to  invite  you  to  attend  Xtrana,  Inc.'s  Annual  Meeting  of
Stockholders to be held October 3, 2005 at 11:00 a.m.  Pacific  Daylight Time at
the offices of Stubbs Alderton & Markiles,  LLP, 15821 Ventura Blvd., Suite 525,
Encino,  CA 91436. The formal Notice of Annual Meeting of Stockholders and Proxy
Statement are attached.

The matters to be acted upon by the  Stockholders are set forth in the Notice of
Annual  Meeting of  Stockholders.  At the Annual  Meeting,  you will be asked to
consider and vote upon the following:

         1.       The election of six directors.

         2.       A proposal to adopt the Agreement and Plan of Merger, dated as
                  of December 14, 2004, as amended,  by and among Xtrana,  Inc.,
                  AIC Merger Corporation,  a direct  wholly-owned  subsidiary of
                  Xtrana, Inc. and Alpha Innotech Corporation, pursuant to which
                  AIC  Merger  Corporation  will be merged  with and into  Alpha
                  Innotech  Corporation,  with Alpha Innotech Corporation as the
                  surviving corporation in the merger.

         3.       A proposal to amend our Certificate of Incorporation to effect
                  a reverse  stock  split  pursuant  to which ten  shares of the
                  Company's  outstanding  common stock will be exchanged for one
                  new  share  of   common   stock   immediately   prior  to  the
                  consummation of the proposed merger.

         4.       A proposal to amend our Certificate of Incorporation to change
                  the name of our corporation to Alpha Innotech Corp.  following
                  a successful completion of the proposed merger.

                  XTRANA CANNOT  COMPLETE ITS MERGER WITH ALPHA INNOTECH  UNLESS
                  YOU APPROVE PROPOSALS 2, 3 AND 4.

         5.       To   approve  a   proposal   to  grant  our   management   the
                  discretionary  authority  to adjourn  the Annual  Meeting to a
                  later  date in order to  enable  our  management  and Board of
                  Directors to continue to solicit  additional  proxies in favor
                  of Proposals No. 2, 3 and 4 above.

         6.       Any other matters that properly come before the Annual Meeting
                  or any adjournments or postponements of the Annual Meeting.

Our Board of  Directors  believes  the  merger  agreement  and the  transactions
contemplated by the merger agreement,  including the merger,  are fair to and in
the best interests of Xtrana, Inc. and its stockholders.

OUR  BOARD OF  DIRECTORS  HAS  ADOPTED  THE  MERGER  AGREEMENT  AND  UNANIMOUSLY
RECOMMENDS THAT YOU VOTE "FOR" ADOPTION OF THE MERGER AGREEMENT.

I  enthusiastically  support this merger and join with the Board of Directors in
recommending  that you vote in favor of the merger.  It is  important  that your
shares be voted  whether or not you plan to be  present  at the Annual  Meeting.
Please complete, sign, date and return the enclosed form of proxy promptly.

                          YOUR VOTE IS VERY IMPORTANT!

                                       Sincerely,

                                       Xtrana, Inc.


                                       ----------------------------------
                                       Michael D. Bick, PhD
                                       Chairman of the Board of Directors





                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                                 OF XTRANA, INC.
                           TO BE HELD OCTOBER 3, 2005

TO THE STOCKHOLDERS
OF XTRANA, INC.:

         Notice is hereby given that a Annual Meeting (the "Annual  Meeting") of
stockholders  of Xtrana,  Inc. will be held at the offices of Stubbs  Alderton &
Markiles,  LLP, 15821 Ventura Blvd.,  Suite 525, Encino, CA 91436, on October 3,
2005 at 11:00 a.m. Pacific Daylight Time, for the following purposes:

         1.       The election of six directors.

         2.       To consider  and vote upon a proposal  to adopt the  Agreement
                  and Plan of Merger, dated as of December 14, 2004, as amended,
                  by and among Xtrana,  Inc., AIC Merger  Corporation,  a direct
                  wholly-owned  subsidiary  of Xtrana,  Inc. and Alpha  Innotech
                  Corporation,  pursuant to which AIC Merger Corporation will be
                  merged with and into Alpha  Innotech  Corporation,  with Alpha
                  Innotech  Corporation  as  the  surviving  corporation  in the
                  merger.

         3.       To consider and vote upon a proposal to amend our  Certificate
                  of  Incorporation  to effect a reverse stock split pursuant to
                  which ten shares of the  Company's  outstanding  common  stock
                  will  be  converted   into  one  new  share  of  common  stock
                  immediately  prior to the  consummation of the proposed merger
                  described in Proposal No. 2.

         4.       To consider and vote upon a proposal to amend our  Certificate
                  of  Incorporation  to change  the name of our  corporation  to
                  Alpha Innotech Corp. following a successful  completion of the
                  proposed merger described in Proposal No. 2.

         5.       To   approve  a   proposal   to  grant  our   management   the
                  discretionary  authority  to adjourn  the Annual  Meeting to a
                  later  date in order to  enable  our  management  and Board of
                  Directors to continue to solicit  additional  proxies in favor
                  of Proposals No. 2, 3 and 4 above.


         6.       To consider and vote upon any other matters that properly come
                  before the Annual Meeting or any adjournments or postponements
                  of the Annual Meeting.

         The Board of  Directors  has fixed the close of  business on August 12,
2005 as the record date for determination of the stockholders entitled to notice
of and to  vote  at the  Annual  Meeting  or any  adjournment  thereof.  The six
nominees for directors who receive the highest  number of votes will be elected.
Approval of the matters to be voted upon in connection with Proposal  numbers 2,
3 and 4 above,  require the  affirmative  vote of a majority of the  outstanding
shares of common stock as of the record date.  The approval of the matters to be
voted upon in  connection  with  Proposal  number 5 requires  the  approval of a
majority of the votes cast on that proposal.

         IT IS  IMPORTANT  THAT  YOUR  SHARES  BE  REPRESENTED  AT  THE  MEETING
REGARDLESS  OF THE  NUMBER OF SHARES  YOU HOLD.  YOU ARE  INVITED  TO ATTEND THE
MEETING IN PERSON, BUT WHETHER OR NOT YOU PLAN TO ATTEND, PLEASE COMPLETE, DATE,
SIGN AND RETURN  THE  ACCOMPANYING  PROXY IN THE  ENCLOSED  ENVELOPE.  IF YOU DO
ATTEND THE  MEETING,  YOU MAY,  IF YOU  PREFER,  REVOKE YOUR PROXY AND VOTE YOUR
SHARES IN PERSON.





         The accompanying  Proxy Statement and the Appendices thereto (including
the  Agreement  and Plan of Merger,  as  amended,  attached as APPENDIX A to the
attached Proxy Statement) form a part of this notice.

                                       By Order of the Board of Directors


                                       ----------------------------------
                                       Michael D. Bick, PhD
                                       Chairman of the Board of Directors

P.O. Box 688 
Sedalia, Colorado 80135
(303) 466-4424

Dated: August __, 2005

         PLEASE COMPLETE, DATE, AND SIGN THE ENCLOSED PROXY AND RETURN IT IN THE
ENVELOPE PROVIDED AS PROMPTLY AS POSSIBLE, WHETHER OR NOT YOU PLAN TO ATTEND THE
ANNUAL MEETING. IF YOU LATER DECIDE TO REVOKE YOUR PROXY FOR ANY REASON, YOU MAY
DO SO IN THE MANNER DESCRIBED IN THE ATTACHED PROXY STATEMENT.





                                 XTRANA, INC.
                                 P.O. Box 688
                            Sedalia, Colorado 80135
                                (303) 466-4424
--------------------------------------------------------------------------------


                                 PROXY STATEMENT

                         ANNUAL MEETING OF STOCKHOLDERS

         This  Proxy  Statement  is  being  furnished  to  you  as a  holder  of
outstanding  shares common  stock,  par value $0.01 per share,  of Xtrana,  Inc.
("Xtrana," the "Company," "we" or "us") in connection  with the  solicitation of
proxies by our Board of Directors,  for use at a Annual Meeting of  Stockholders
(the "Annual  Meeting") to be held at the offices of Stubbs Alderton & Markiles,
LLP, 15821 Ventura Blvd.,  Suite 525,  Encino,  CA 91436,  on October 3, 2005 at
11:00 a.m. Pacific Daylight Time. Accompanying this Proxy Statement is the Board
of Directors'  Proxy for the Annual Meeting,  which you may use to indicate your
vote as to the proposal described in this Proxy Statement.

         All Proxies  which are  properly  completed,  signed and returned to us
prior to the Annual Meeting,  and which have not been revoked,  will be voted in
favor  of the  proposal  described  in this  Proxy  Statement  unless  otherwise
directed.  You may  revoke a Proxy  given to us at any time  before  it is voted
either by filing with our Secretary,  at our executive offices, a written notice
of revocation or a duly executed proxy bearing a later date, or by attending the
Annual Meeting and expressing a desire to vote your shares in person.

         The close of business on August 12, 2005,  has been fixed as the record
date for the determination of stockholders  entitled to notice of and to vote at
the Annual Meeting or any  adjournments of the Annual Meeting.  As of the record
date, we had outstanding  16,533,269 shares of common stock, par value $0.01 per
share, our only outstanding voting securities. A stockholder is entitled to cast
one vote for each share held on the record date on all matters to be  considered
at the Annual Meeting.

         Our principal  executive  offices are located at P.O. Box 688, Sedalia,
Colorado 80135. This Proxy Statement and the accompanying  Proxy are expected to
be mailed to our stockholders beginning on August 12, 2005.

         At the Annual Meeting, the stockholders will consider and vote upon the
proposal  to (1) elect  six  directors,  (2)  approve  a  proposal  to adopt the
Agreement and Plan of Merger,  dated as of December 14, 2004, as amended, by and
among us, our wholly-owned subsidiary AIC Merger Corporation, and Alpha Innotech
Corporation ("Alpha Innotech"), pursuant to which AIC Merger Corporation will be
merged  with and into Alpha  Innotech,  with  Alpha  Innotech  as the  surviving
corporation in the merger (this  agreement,  as amended,  is referred to in this
Proxy Statement as the "Merger Agreement" and this transaction is referred to as
the "Merger"),  (3) approve a proposal to amend our Certificate of Incorporation
to effect a reverse stock split pursuant to which ten shares of our  outstanding
common stock will be exchanged for one new share of our common stock immediately
prior to the  Merger;  (4)  approve  a  proposal  to amend  our  Certificate  of
Incorporation  to change the name of our  corporation  to Alpha  Innotech  Corp.
following a successful completion of the Merger, (5) approve a proposal to grant
our  management the  discretionary  authority to adjourn the Annual Meeting to a
later date in order to enable our  management and Board of Directors to continue
to solicit  additional  proxies in favor of the prior three  proposals,  and (6)
consider such other  proposals as may properly come before the Annual Meeting or
any adjournment thereof.

         Additional  information  about the Merger and the parties to the Merger
Agreement  is  contained  in this  Proxy  Statement,  which  should be  reviewed
carefully.


                                        i



         THE  BOARD  OF  DIRECTORS   UNANIMOUSLY   RECOMMENDS  THAT  THE  XTRANA
STOCKHOLDERS VOTE "FOR" THE PERSONS NOMINATED FOR ELECTION AS DIRECTORS.

         FOR  THE  REASONS  SET  FORTH  HEREIN,   THE  BOARD  OF  DIRECTORS  HAS
UNANIMOUSLY CONCLUDED THAT THE MERGER IS IN THE BEST INTERESTS OF XTRANA AND THE
XTRANA STOCKHOLDERS AND UNANIMOUSLY RECOMMENDS THAT THE XTRANA STOCKHOLDERS VOTE
"FOR" THE APPROVAL OF THE MERGER  AGREEMENT  AND THE  TRANSACTIONS  CONTEMPLATED
THEREIN, INCLUDING THE AMENDMENT OF OUR CERTIFICATE OF INCORPORATION TO EFFECT A
1-FOR-10  REVERSE  STOCK  SPLIT,   CHANGE  OUR  CORPORATE  NAME  AND  "FOR"  THE
ADJOURNMENT PROPOSAL.

                                      * * *

         YOU MAY RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROXY STATEMENT.
XTRANA HAS NOT  AUTHORIZED  ANYONE TO PROVIDE  INFORMATION  DIFFERENT  FROM THAT
CONTAINED IN THIS PROXY STATEMENT.  NEITHER THE DELIVERY OF THIS PROXY STATEMENT
NOR THE CONSUMMATION OF THE MERGER BY XTRANA MEANS THAT INFORMATION CONTAINED IN
THIS PROXY STATEMENT IS CORRECT AFTER THE DATE OF THIS PROXY STATEMENT.

                                TABLE OF CONTENTS
SUMMARY........................................................................1
THE ANNUAL MEETING OF STOCKHOLDERS.............................................6
PROPOSAL NO. 1: ELECTION OF DIRECTORS..........................................9
PROPOSAL NO. 2: MERGER........................................................17
PROPOSAL NO. 3: REVERSE STOCK SPLIT...........................................68
PROPOSAL NO. 4: NAME CHANGE...................................................73
PROPOSAL NO. 5: ADJOURNMENT PROPOSAL..........................................74
BENEFICIAL OWNERSHIP OF COMMON STOCK..........................................75
PROPOSALS OF STOCKHOLDERS.....................................................76
OTHER MATTERS.................................................................76
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM.................................76
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE...............................77

APPENDIX A: AGREEMENT AND PLAN OF MERGER (INCLUDING AMENDMENTS NO. 1 & 2)....A-1
APPENDIX B: OPINION OF FINANCIAL ADVISORS....................................B-1
APPENDIX C: FINANCIAL STATEMENTS OF ALPHA INNOTECH CORPORATION...............C-1
APPENDIX D: CERTIFICATE OF AMENDMENT TO CERTIFICATE OF INCORPORATION.........D-1


                                       ii



                                     SUMMARY

         YOU SHOULD READ THE FOLLOWING  SUMMARY  TOGETHER WITH THE MORE DETAILED
INFORMATION AND FINANCIAL STATEMENTS AND THE NOTES TO THOSE STATEMENTS APPEARING
ELSEWHERE IN THIS PROXY STATEMENT OR DELIVERED WITH THIS PROXY STATEMENT.

THE COMPANIES
XTRANA, INC.:                We  were  incorporated  in  Delaware  in  1987.  We
                             previously  developed nucleic  acid-based tests for
                             use in drug discovery,  detection of  environmental
                             and  food  contaminants,   forensics  and  identity
                             testing,   human  and  animal   diseases,   genetic
                             predisposition to disease,  and other applications.
                             We  sold  substantially  all  of  our  intellectual
                             property assets to Applera  Corporation in May 2004
                             pursuant to an Assignment Agreement approved by our
                             stockholders  in March,  2004.  As a result,  we no
                             longer have any ongoing  operations.  Our corporate
                             office  is  located  at  P.O.  Box  688,   Sedalia,
                             Colorado  80135 and our  telephone  number is (303)
                             466-4424.

                             See  page  39,  "PROPOSAL  NO.  2  MERGER  - Xtrana
                             Business and Financial Information"

ALPHA INNOTECH CORPORATION   Alpha  Innotech   Corporation,   a  privately  held
                             company,  was  incorporated  in California in 1992.
                             Alpha Innotech develops,  manufactures, and markets
                             digital imaging and detection  systems for the life
                             science research and drug discovery markets.  Alpha
                             Innotech  maintains its  corporate  offices at 2401
                             Merced Street,  San Leandro,  California  94577 and
                             its telephone number is (510) 483-9620.

                             See  page  40,  "PROPOSAL  NO.  2  MERGER  -  Alpha
                             Innotech Business and Financial Information"

THE AGREEMENT AND PLAN OF MERGER

THE EFFECT OF THE MERGER     On December  14,  2004,  Xtrana and Alpha  Innotech
                             entered into the Merger Agreement.  Pursuant to the
                             Merger Agreement:

                             o        Our  wholly-owned  subsidiary  AIC  Merger
                                      Corporation will merge with and into Alpha
                                      Innotech;

                             o        Alpha   Innotech  will  be  the  surviving
                                      corporation and a wholly-owned  subsidiary
                                      of Xtrana;

                             o        The  separate   existence  of  AIC  Merger
                                      Corporation will end;

                             o        Each share of Alpha Innotech  common stock
                                      and preferred stock issued and outstanding
                                      at the  closing of the Merger  (other than
                                      treasury  stock  and  dissenters'  shares)
                                      will be  converted  into  shares  of newly
                                      issued Xtrana common stock; and

                             o        Immediately   following  the  Merger,  the
                                      Alpha  Innotech   stockholders  will  hold
                                      approximately  83%  and  our  stockholders
                                      will   hold   approximately   17%  of  the
                                      outstanding   shares   of  the   surviving
                                      corporation    (excluding    options   and
                                      warrants).

                             See page 17, "PROPOSAL NO. 2 MERGER"



MERGER CONSIDERATION         Upon approval and  consummation  of the Merger,  we
                             will issue, in exchange for all outstanding  shares
                             of Alpha Innotech common and preferred stock,  that
                             number of shares of our common  stock as will equal
                             approximately 83% of our total  outstanding  shares
                             immediately  after the  consummation of the Merger.
                             Of these shares,  500,000 shares will be issued and
                             placed in an escrow  account  until March 31, 2006,
                             and may be cancelled if Alpha Innotech  suffers any
                             liabilities under the indemnification provisions of
                             the Merger Agreement.  An additional 500,000 shares
                             of our  common  stock  will be issued and placed in
                             escrow for until March 31, 2006 and may be released
                             to Alpha  Innotech  stockholders  if we suffer  any
                             liabilities  under the  indemnification  provisions
                             set  forth  in the  Merger  Agreement.  The  Merger
                             consideration    described    above   assumes   the
                             completion  of the 1-for-10  reverse stock split of
                             Xtrana, Inc. common stock described below.

                             It is a  condition  to the  closing  that we have a
                             specified   minimum   amount   of  cash   and  cash
                             equivalents  at the  closing of the  Merger,  which
                             amount is $2,450,000 less certain expenses incurred
                             by us in connection  with the Merger.  In addition,
                             in accordance  with the Merger  Agreement,  we have
                             previously   advanced   Alpha   Innotech   $500,000
                             pursuant to secured promissory note.

                             See  page  27,  "PROPOSAL  NO.  2  MERGER  - Merger
                             Consideration"

CONDITIONS THAT MUST BE      Each party's  obligation  to complete the Merger is
SATISFIED FOR THE MERGER     subject  to the  prior  satisfaction  or  waiver of
TO OCCUR                     certain   conditions.   In  addition  to  customary
                             closing  conditions,  we have to  comply  with  the
                             following   material   conditions   that   must  be
                             satisfied  or  waived  before   completion  of  the
                             Merger:  

                             o        we shall  have  obtained  the  affirmative
                                      vote  of  the  holders  of a  majority  of
                                      shares of Xtrana  Common Stock in favor of
                                      the Merger;

                             o        we shall have cash and cash equivalents at
                                      the closing in amount equal to  $2,450,000
                                      less   certain   expenses    incurred   in
                                      connection with the Merger;

                             o        we  shall  have   implemented  a  1-for-10
                                      reverse stock split; and

                             o        we shall change our corporate  name at the
                                      time of the  closing  to  "Alpha  Innotech
                                      Corp."

                             See page 25, "PROPOSAL NO. 2 MERGER--Conditions  of
                             the Merger"

TERMINATION OF THE           The  Merger  Agreement  may be  terminated  and the
MERGER AGREEMENT             Merger  may be  abandoned  at any time prior to the
                             completion of the Merger:

                             o        by mutual written consent of the parties;

                             o        by either party if any governmental entity
                                      issues    an   order    restraining    the
                                      consummation of the Merger;

                             o        by  either  Alpha  Innotech  or us if  the
                                      closing has not occurred by September  30,
                                      2005  (unless  the failure to close is the
                                      result of a terminating party's failure to
                                      act);

                             o        by either  party in the event  other party
                                      materially  breaches  its  representations
                                      under the Merger Agreement;


                                        2



                             o        by   either   party   if  our   respective
                                      stockholders  fail to approve  the Merger;
                                      and

                             o        by  either  party  if a  material  adverse
                                      change with respect to the business of the
                                      other  party  has  occurred  prior  to the
                                      closing.

                             In  the  event   that  the  Merger   Agreement   is
                             terminated  because the closing has not occurred by
                             September 30, 2005, or by Alpha Innotech because of
                             an adverse  change in our business,  or a breach of
                             our  representations  and  warranties,  or by Alpha
                             Innotech  because our  stockholders  do not approve
                             the Merger,  then we will be obligated to pay Alpha
                             Innotech $100,000 by offset against the obligations
                             of Alpha Innotech pursuant to a $500,000 promissory
                             note issued by Alpha Innotech to us pursuant to the
                             terms of the Merger Agreement.

                             See page 25,  "PROPOSAL NO. 2  MERGER--Termination;
                             Termination Fee"

FEDERAL INCOME TAX           The   Merger   is   intended   to  be  a   tax-free
                             reorganization  in  which  no gain or loss  will be
                             recognized by us or our stockholders. For a further
                             discussion of the federal  income tax  consequences
                             of  the  Merger,  see  page  28,  "PROPOSAL  NO.  2
                             MERGER--Material Federal Income Tax Consequences to
                             Stockholders"

REGULATORY REQUIREMENTS      Other than the following actions,  we are not aware
                             of any governmental or regulatory requirements with
                             which we must comply in  completing  the Merger:  

                             o        compliance  with the  general  corporation
                                      laws of the  State of  California  and the
                                      State of Delaware; and

                             o        compliance   with  any  applicable   state
                                      securities laws.

                             See page  29,  "PROPOSAL  NO. 2  MERGER--Regulatory
                             Approvals"

CONDUCT OF BUSINESS          The Merger  Agreement  provides  that,  pending the
                             Merger,  neither we nor AIC Merger  Corporation  or
                             Alpha Innotech will enter a transaction or take any
                             action outside the ordinary course of business.

                             See page 24, "PROPOSAL NO. 2 MERGER--Covenants"

VOTE REQUIRED:               Approval  of  the  matters  to  be  voted  upon  in
                             connection with the Merger,  including Proposals 2,
                             3 and  4,  requires  the  affirmative  vote  of the
                             holders of a majority of our outstanding  shares of
                             common stock.  As a result,  the failure to vote in
                             person  or by  proxy on any  such  proposal  at the
                             Annual Meeting or abstaining on the Merger proposal
                             has the same  effect as voting  against  the Merger
                             proposal.

                             See page 6,  "THE ANNUAL MEETING OF  STOCKHOLDERS--
                             Votes Required; Quorum."

THE ANNUAL MEETING OF STOCKHOLDERS

ANNUAL MEETING:              Our Annual  Meeting will be held on October 3, 2005
                             at 11:00 a.m. Pacific Daylight Time, at the offices
                             of Stubbs  Alderton & Markiles,  LLP, 15821 Ventura
                             Blvd.,  Suite 525, Encino, CA 91436. The purpose of
                             the Annual  Meeting is to consider  and vote on the
                             following:


                                        3



                             1.       the election of six directors;

                             2.       a proposal to adopt the Agreement and Plan
                                      of Merger,  dated as of December 14, 2004,
                                      as  amended,  by and among us,  AIC Merger
                                      Corporation   (our   direct   wholly-owned
                                      subsidiary),     and    Alpha     Innotech
                                      Corporation,  pursuant to which AIC Merger
                                      Corporation  will be merged  with and into
                                      Alpha  Innotech  Corporation,  with  Alpha
                                      Innotech   Corporation  as  the  surviving
                                      corporation in the Merger;

                             3.       a  proposal  to amend our  Certificate  of
                                      Incorporation  to effect a  reverse  stock
                                      split  pursuant to which ten shares of our
                                      outstanding common stock will be exchanged
                                      for  one  new   share  of   common   stock
                                      immediately  prior to the  consummation of
                                      the Merger;

                             4.       a  proposal  to amend our  Certificate  of
                                      Incorporation  to  change  the name of our
                                      corporation to Alpha  Innotech Corp.  upon
                                      successful completion of the Merger;

                             5.       a  proposal  to grant our  management  the
                                      discretionary  authority  to  adjourn  the
                                      Annual Meeting to a later date in order to
                                      enable   our   management   and  Board  of
                                      Directors    to    continue   to   solicit
                                      additional  proxies in favor of  Proposals
                                      No. 2, 3 and 4 above; and

                             6.       any  other   matters  that  properly  come
                                      before   the   Annual   Meeting   or   any
                                      adjournments  or   postponements   of  the
                                      Annual Meeting.

                             Holders of record of our common  stock at the close
                             of  business on August 12, 2005 will be entitled to
                             notice of and to vote at the Annual  Meeting.  Each
                             share of our common  stock is  entitled to one vote
                             for each  share  held of record  upon  each  matter
                             properly  presented to the  stockholders for a vote
                             at the Annual Meeting.

                             See page 6,  "THE ANNUAL MEETING OF  STOCKHOLDERS -
                             Votes Required; Quorum; and Voting of Proxies."

OPINION OF FINANCIAL         In connection with the proposed  Merger,  our Board
ADVISORS                     of  Directors  received an opinion  from The Mentor
                             Group,  Inc. as to the  fairness of the Merger with
                             Alpha  Innotech  to  the  existing  holders  of our
                             common stock,  from a financial  point of view. The
                             full text of The Mentor  Group's  written  opinion,
                             dated  April 21,  2005,  is  attached to this proxy
                             statement as APPENDIX B. We  encourage  you to read
                             the  opinion   carefully  in  its  entirety  for  a
                             description  of the  assumptions  made,  procedures
                             followed, matters considered and limitations on the
                             review undertaken.  THE MENTOR GROUP'S OPINION DOES
                             NOT  CONSTITUTE A  RECOMMENDATION  TO YOU AS TO HOW
                             YOU SHOULD VOTE OR ACT ON ANY  MATTERS  RELATING TO
                             THE MERGER.

                             See page 30,  "PROPOSAL  NO. 2  MERGER--Opinion  of
                             Financial Advisors"

RECOMMENDATIONS OF THE       Our Board of  Directors  unanimously  approved  the
BOARD OF DIRECTORS:          Merger Agreement and the transactions  contemplated
                             thereby.  The  members  of the  Board of  Directors
                             unanimously   believe   that  the  Merger  and  the
                             transactions contemplated by the 


                                        4



                             Merger  Agreement  are  fair  to,  and in the  best
                             interests  of,  our  stockholders  and  unanimously
                             recommend a vote "FOR" the Merger.  The  conclusion
                             of the  Board  of  Directors  with  respect  to the
                             Merger was based upon a number of factors.

                             See  page 27,  "PROPOSAL  NO.  2  MERGER--Board  of
                             Directors' Reasons for the Merger"


                                        5



                       THE ANNUAL MEETING OF STOCKHOLDERS

DATE, TIME, PLACE

         This Proxy Statement is furnished in connection  with the  solicitation
by our Board of Directors of proxies  representing  our common stock to be voted
at the  Annual  Meeting  to be held on  October  3, 2005 at 11:00  a.m.  Pacific
Daylight Time, at the offices of Stubbs Alderton & Markiles,  LLP, 15821 Ventura
Blvd., Suite 525, Encino, CA 91436.

MATTERS TO BE CONSIDERED

         At the Annual  Meeting,  holders of our common stock will  consider and
vote upon (1) the  election  of six  directors;  (2) the  approval of the Merger
pursuant  to the Merger  Agreement;  (3) the  amendment  of our  Certificate  of
Incorporation  to effect a 1-for-10  reverse stock split  effective  immediately
prior to the Merger;  (4) the amendment of our Certificate of  Incorporation  to
change our name,  pursuant to the Merger Agreement;  (5) to grant our management
the  discretionary  authority  to adjourn the Annual  Meeting to a later date in
order to enable our  management  and Board of  Directors  to continue to solicit
additional proxies in favor of Proposals No. 2, 3 and 4 above and (6) such other
matters as may properly come before the Annual Meeting.

RECORD DATE; STOCK ENTITLED TO VOTE

         The Board of  Directors  has fixed the close of  business on August 12,
2005,  as the record  date for the  Annual  Meeting.  Only  holders of record of
shares of our common  stock are  entitled to notice of and to vote at the Annual
Meeting. As of the Record Date, there were 16,533,269 shares of our common stock
outstanding and entitled to vote. Each holder of record as of the record date of
common stock is entitled to cast one vote per share.

VOTES REQUIRED

         The six nominees for election to the board of directors who receive the
greatest number of votes will be elected.

         The  affirmative  vote of the holders of a majority of the total number
of outstanding shares of our common stock entitled to vote at the Annual Meeting
is  required to approve the Merger  pursuant  to the Merger  Agreement,  and any
amendment to our Certificate of Incorporation.  Abstentions and broker non-votes
will be counted  toward the tabulation of votes cast on the proposals 2, 3 and 4
and will have the same effect as negative votes.  Broker  non-votes occur when a
broker  holding  customer  securities  in street  name has not  received  voting
instructions from the customer on certain non-routine matters and, therefore, is
barred  by the  rules of the  applicable  securities  exchange  from  exercising
discretionary authority to vote those securities.

         The  approval  of the  matters  to be  voted  upon in  connection  with
adjournment  proposal  requires  the approval of a majority of the votes cast on
the proposal. Broker non-votes and abstentions will have no effect on
the outcome of the vote on the adjournment proposal. Additionally, no proxy that
is specifically  marked  "AGAINST"  approval of the Merger,  reverse stock split
and/or  the  corporate  name  change  will be voted in favor of the  adjournment
proposal,  unless it is specifically marked "FOR" the discretionary authority to
adjourn the Annual Meeting to a later date.

         Action by the  stockholders  on any other  matter that  properly  comes
before the Annual  Meeting will be approved if the number of votes cast in favor
of the action exceeds the number of votes cast in opposition to the action.


                                       6



QUORUM

         The  holders of a majority  of the stock  issued  and  outstanding  and
entitled to vote thereat, present in person or represented by proxy, constitutes
a quorum  at the  Annual  Meeting.  Abstentions  and  broker  non-votes  will be
included in the number of shares present at the Annual  Meeting for  determining
the  presence  of a quorum.  If a quorum is not  present or  represented  at the
Annual Meeting, the stockholders entitled to vote thereat,  present in person or
represented by proxy, shall have power to adjourn the meeting from time to time,
without notice other than  announcement at the meeting,  until a quorum shall be
present or  represented.  At such  adjourned  meeting at which a quorum shall be
present or  represented  all  proxies  will be voted in the same  manner as such
proxies  would have been voted at the original  convening of the Annual  Meeting
and any  business  may be  transacted  which might have been  transacted  at the
Annual Meeting as originally notified.

VOTING OF PROXIES

         This  Proxy  Statement  is  being  furnished  to  our  stockholders  in
connection  with the  solicitation  of  proxies by and on behalf of the Board of
Directors for use at the Annual Meeting, and is accompanied by a form of proxy.

         All  shares  of our  common  stock  that are  entitled  to vote and are
represented at the Annual Meeting by properly executed proxies received prior to
or at the Annual Meeting,  and not revoked,  will be voted at the Annual Meeting
in  accordance  with  the  instructions   indicated  on  such  proxies.   If  no
instructions  are  indicated,  such  proxies  will be voted for  approval of the
Merger and the Merger  Agreement,  the reverse stock split, the corporation name
change and the adjournment proposal.

REVOCABILITY OF PROXIES

         Any proxy  given  pursuant to this  solicitation  may be revoked by the
person  giving it at any time before it is voted.  Proxies may be revoked by (1)
filing  with our  Secretary,  at or before  the taking of the vote at the Annual
Meeting,  a written  notice of  revocation  bearing a later  date than the proxy
originally  filed,  (2) duly  executing a later dated proxy relating to the same
shares and  delivering it to our Secretary  before the taking of the vote at the
Annual  Meeting  or (3)  attending  the  Annual  Meeting  and  voting  in person
(although  attendance at the Annual Meeting will not in and of itself constitute
a revocation of a proxy).  Any written notice of revocation or subsequent  proxy
should  be sent to us at P.O.  Box  688,  Sedalia,  Colorado  80135,  Attention:
Secretary,  or hand  delivered  to our  Secretary at or before the taking of the
vote at the Annual Meeting.

SOLICITATION OF PROXIES

         All  expenses of our  solicitation  of proxies,  including  the cost of
mailing  this  Proxy  Statement  to our  stockholders,  will be borne by us.  In
addition to  solicitation  by use of the mails,  proxies may be  solicited  from
stockholders by our directors,  officers and employees in person or by telephone
or other means of communication. Such directors, officers and employees will not
be additionally compensated,  but may be reimbursed for reasonable out-of-pocket
expenses  in  connection  with  such   solicitation.   We  may  retain  a  proxy
solicitation  firm for assistance in connection with the solicitation of proxies
for the Annual Meeting.  Arrangements  will also be made with brokerage  houses,
custodians,  nominees and fiduciaries  for the forwarding of proxy  solicitation
materials  to  beneficial  owners  of shares  held of  record by such  brokerage
houses,  custodians,  nominees  and  fiduciaries,  and we  will  reimburse  such
brokerage  houses,  custodians,  nominees and fiduciaries  for their  reasonable
expenses incurred in connection therewith.


                                       7



BOARD RECOMMENDATIONS

         THE  BOARD  OF  DIRECTORS   UNANIMOUSLY   RECOMMENDS  THAT  THE  XTRANA
STOCKHOLDERS VOTE "FOR" THE PERSONS NOMINATED FOR ELECTION AS DIRECTORS.

         FOR  THE  REASONS  SET  FORTH  HEREIN,   THE  BOARD  OF  DIRECTORS  HAS
UNANIMOUSLY CONCLUDED THAT THE MERGER IS IN THE BEST INTERESTS OF XTRANA AND THE
XTRANA STOCKHOLDERS AND UNANIMOUSLY RECOMMENDS THAT THE XTRANA STOCKHOLDERS VOTE
"FOR" THE APPROVAL OF THE MERGER  AGREEMENT  AND THE  TRANSACTIONS  CONTEMPLATED
THEREIN,  INCLUDING THE AMENDMENT OF OUR CERTIFICATE OF  INCORPORATION TO CHANGE
OUR NAME AND EFFECT A 1-FOR-10  REVERSE  STOCK  SPLIT AND "FOR" THE  ADJOURNMENT
PROPOSAL.


                                       8



                                 PROPOSAL NO. 1:
                              ELECTION OF DIRECTORS

         Our Board of  Directors  currently  consists  of six  members.  At each
annual meeting of our  stockholders,  directors are elected for a one-year term.
At the 2005 Annual Meeting, each director will be elected for a term expiring at
the 2006 Annual Meeting.  The Board of Directors proposes the six nominees named
below.  If the  Merger  (as  described  in more  detail  in  Proposal  No. 2) is
successfully completed,  then director nominees Douglas Ayer, John Gerdes, James
Mahoney  and Price  Paschall  will resign as  directors  upon the closing of the
Merger.  However,  if the Merger is not approved by the  stockholders  or is not
completed  for any  other  reason,  then all of the  nominees  listed  below are
currently expected to serve a term expiring at the 2006 Annual Meeting.

         Unless  marked  otherwise,  proxies  received  will  be  voted  FOR the
election of the each of the nominees  named below.  If any such person is unable
or unwilling to serve as a nominee for the office of director at the date of the
Annual Meeting or any  postponement or adjournment  thereof,  the proxies may be
voted  for a  substitute  nominee,  designated  by the proxy  holders  or by the
present Board of Directors to fill such  vacancy.  The Board of Directors has no
reason to believe  that any such nominee will be unwilling or unable to serve if
elected a director.

         The Board of Directors  proposes the election of the following nominees
as members of the Board of Directors:

                             Michael D. Bick, Ph.D.
                              James H. Chamberlain
                                 Douglas L. Ayer
                              John C. Gerdes, Ph.D.
                             James B. Mahony, Ph.D.
                                N. Price Paschall

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE FOR EACH OF
THE DIRECTOR NOMINEES.

     INFORMATION WITH RESPECT TO EACH DIRECTOR, NOMINEE AND CERTAIN OFFICERS

         The  following  table sets forth  certain  information,  as of June 30,
2005, with respect to each of our directors, nominees and executive officers.

                                                                        DIRECTOR
        NAME              AGE               CURRENT POSITION             SINCE
        ----              ---               ----------------            --------
Michael D. Bick, Ph.D.     60     Chairman of the Board and Director      1991
James H. Chamberlain       57     Chief Executive Officer and Chief       1998
                                  Financial Officer and Director
Douglas L. Ayer            68     Director                                1993
John C. Gerdes, Ph.D.      56     Director                                2004
James B. Mahony            56     Director                                2002
N. Price Paschall          56     Director                                1997

         All officers are appointed by and serve at the  discretion of the Board
of Directors.  There are no family relationships between any of our directors or
officers.

         MICHAEL D. BICK,  PH.D.,  previously  has served as  Chairman  of Board
since July 1993.  Dr. Bick also served as Chief  Executive  Officer  from August
1991 until August 2000 and  President  from  January 1996 until August 2000.  In
1988, Dr. Bick founded the Company's former subsidiary, MeDiTech, and


                                       9



was  President  and Chief  Executive  Officer  thereof  until it was acquired by
Biopool in January 1992.  Prior to that date, he was co-founder and president of
a privately held medical device firm for ten years. Dr. Bick received a Ph.D. in
molecular  biology from the  University  of Southern  California in 1971 and was
affiliated  with the Harvard  Medical  School and  Children's  Hospital  Medical
Center in Boston  carrying out research in human genetics from 1971 to 1974. Dr.
Bick was a staff member of the Roche Institute of Molecular Biology from 1974 to
1978.  Dr. Bick has served on the Board of Counselors of the School of Pharmacy,
University of Southern California,  is a Charter Member of the Keiretsu Forum of
Southern California and a Director of VCBio.

         JAMES H.  CHAMBERLAIN  was  appointed  as our interim  Chief  Executive
Officer and Chief  Financial  Officer in March 2004.  Since  November  2000, Mr.
Chamberlain has served as a director of the West Virginia University Foundation.
Mr.  Chamberlain  was  the  founder  of.  Mr.   Chamberlain   founded  BioSource
International,  Inc., a Nasdaq National  Market System company  dedicated to the
research,  development,  manufacturing,  and marketing of biomedical products to
the  diagnostic and research  markets,  in 1989.  Mr.  Chamberlain  retired as a
director  of  BioSource  and as its  Chairman,  President,  and Chief  Executive
Officer in 2000. Prior to BioSource, Mr. Chamberlain was the Manager of Business
Development  for  Amgen,  Inc.  Mr.  Chamberlain  also  serves on the  Boards of
Directors of Marligen and Cerionx,  both private  companies in the biotechnology
industry.  Mr. Chamberlain  received a B.S. degree in biology and chemistry from
West  Virginia  University  in 1969 and  completed an MBA  Executive  Program at
Pepperdine University in 1981.

         DOUGLAS  L. AYER has  served  as  President  and  Managing  Partner  of
International  Capital  Partners  of  Stamford,  CT,  since  1989.  Mr. Ayer was
previously Chairman and Chief Executive Officer of Cametrics,  a manufacturer of
precision  metal  components  from 1977 to 1988.  Prior to that,  Mr.  Ayer held
executive  positions  at Paine  Webber and  McKinsey & Co.,  Inc.  Mr. Ayer also
serves  as a  director  of  a  number  of  private  companies,  largely  in  the
information technology sector.

         JOHN C. GERDES,  PH.D.,  became a director and Chief Scientific Officer
of our company concurrent with the merger with Xtrana in 2000. Dr. Gerdes served
as Chief Scientific Officer until August 2004. In 2003, Dr. Gerdes resigned as a
director of the Company  due, in part,  to his desire to submit an offer for the
purchase of the Company's  intellectual  property. Dr. Gerdes was reappointed to
the Board of Directors in March 2004. In 1996, he conceived of a unique point of
care approach for DNA  diagnostics,  the  development  of which  resulted in the
formation  of  Xtrana.  From  1988 to 1998,  he was the  Director  of  Paternity
Analysis and Clinical  Director at IAD where he supervised  clinical testing and
introduced  PCR and other nucleic acid based clinical  tests.  He has twenty-one
publications  primarily  focused on molecular  methods of virus  detection.  Dr.
Gerdes received a B.S. in  Microbiology  from the University of Wyoming in 1970,
and a Ph.D.  in Microbial  Genetics  from the  University  of  California at Los
Angeles (UCLA) in 1974. After completing a four-year post-doctoral fellowship in
Virology,  again at UCLA,  he spent four years as an assistant  professor at the
University  of Colorado  Health  Sciences  Center in Denver  before  accepting a
position at  Immunological  Associates  of Denver (IAD),  a specialty  reference
testing laboratory.

         JAMES B.  MAHONY,  PH.D.,  began  his  career  with the  University  of
Toronto's  Department of  Microbiology  and  Parasitology  in 1979, and has held
numerous positions with McMaster  University,  including serving as the Director
of the  University's  Regional  Virology  and  Chlamydiology  Laboratory  at St.
Joseph's  Hospital  from  1994 to the  present.  Dr.  Mahony  has  authored  140
publications, many of which deal with either chlamydia or gonorrhea. He has also
published 49 articles in books, several discussing sexually transmitted diseases
and  chlamydia.  His  laboratory  frequently  conducts and publishes  validation
studies of new methods for detection of sexually  transmitted disease infectious
agents.  Dr. Mahony is currently a Professor in the  Department of Pathology and
Molecular Medicine at McMaster University in Hamilton, Ontario, Canada, and also
serves as a member of the Professional Staff of


                                       10



Hamilton Health Sciences  Corporation,  Laboratory  Medicine.  In addition,  Dr.
Mahony is President Elect of the Pan American Society of Clinical Virology.

         N.  PRICE  PASCHALL  is the  founder  and  Managing  Partner of Context
Capital Group (formerly HealthCare Capital Advisors) since 1993. Context Capital
Group  provides  merger  and  acquisition  advice  to middle  market  companies,
focusing on the medical service  industry.  Prior to Context Capital Group,  Mr.
Paschall was a Vice  Chairman and founder of Shea,  Paschall and  Powell-Hambros
Bank (SPP Hambros & Co.), a firm specializing in mergers and  acquisitions.  Mr.
Paschall holds a degree in business  administration from California  Polytechnic
University  in  Pomona.  Since  1994,  Mr.  Paschall  has served on the Board of
Directors  and  provided  certain  corporate   financial  services  to  Advanced
Materials Group, a manufacturer and fabricator of specialty foams,  foils, films
and pressure-sensitive adhesive components.

BOARD AND COMMITTEE MEETINGS

         Our Board of Directors  held 9 formal  meetings  during the fiscal year
ending  December 31, 2004.  The Board of Directors has an Audit  Committee and a
Compensation Committee.

         AUDIT COMMITTEE.  The Audit Committee is responsible for the engagement
of the independent  registered public accounting firm,  reviews the scope of the
audit to be conducted by the independent  registered public accounting firm, and
periodically  meets with the independent  registered  public accounting firm and
the  Chief  Financial  Officer  to  review  matters  relating  to our  financial
statements,  our  accounting  principles  and our system of internal  accounting
controls,  and reports its  recommendations  as to the approval of the financial
statements to the Board of Directors.  The Audit Committee currently consists of
Messrs.  Bick,  Paschall and Ayer.  The Audit  Committee held one formal meeting
during fiscal 2004.

         AUDIT COMMITTEE FINANCIAL EXPERT. The Board of Directors has determined
that  Mr.  Ayer is an audit  committee  financial  expert,  as  defined  in Item
401(e)(2)  of  Regulation  S-B,  and is  independent  within the meaning of Item
401(e)(1)(ii) of Regulation S-B.

         COMPENSATION  COMMITTEE.  The Compensation Committee currently consists
of Messrs. Ayer, Paschall and Mahoney. The Compensation Committee is responsible
for considering and making  recommendations to the Board of Directors  regarding
executive  compensation and is responsible for administering the Company's stock
option and executive incentive  compensation  plans. The Compensation  Committee
held one meeting during fiscal 2004.

         NOMINATING COMMITTEE. We do not have a standing nominating committee or
committee performing similar functions, in part, because the our common stock is
traded on the Over-The-Counter  Bulletin Board and the we are not subject to the
listing requirements of any securities exchange or Nasdaq requiring a nominating
committee.  As a result,  the entire Board of  Directors  fulfills the role of a
nominating  committee.  We do not maintain a charter for the director nomination
process.
      
         In carrying out its function to nominate candidates for election to the
Board of  Directors,  the  directors  consider  the mix of  skills,  experience,
character,  commitment,  and diversity of background,  all in the context of the
requirements  of the  Board of  Directors  at that  point in time.  The Board of
Directors  believes  that  each  candidate  should  be  an  individual  who  has
demonstrated  integrity and ethics in such candidate's personal and professional
life,  has  an  understanding   of  elements   relevant  to  the  success  of  a
publicly-traded   company  and  has   established   a  record  of   professional
accomplishment  in such  candidate's  chosen  field.  Each  candidate  should be
prepared to participate fully in board activities,  including attendance at, and
active participation in, meetings of the Board of Directors,  and not have other
personal or professional  commitments that would, in the nominating  committee's
judgment, interfere with


                                       11



or limit such candidate's ability to do so. The Board of Directors has no stated
specific,  minimum qualifications that must be met by a candidate for a position
as a director.

         The directors'  methods for identifying  candidates for election to the
Board of Directors (other than those proposed by our stockholders,  as discussed
below) include the  solicitation of ideas for possible  candidates from a number
of  sources--members  of the Board of  Directors;  our  executives;  individuals
personally  known to the members of the Board of Directors;  and other research.
The Board of Directors may also from time to time retain one or more third-party
search firms to identify suitable candidates.

         Any of our  stockholders  may nominate one or more persons for election
as a director at an annual meeting of stockholders  if the stockholder  complies
with the notice,  information and consent provisions  contained in the Company's
Bylaws.  In  addition,  the notice  must be made in writing  and include (A) the
name,  age,  business  address and  residence  address of such  person,  (B) the
principal  occupation or employment of such person,  (C) the class and number of
shares of the corporation  which are  beneficially  owned by such person,  (D) a
description of all  arrangements or  understandings  between the stockholder and
each  nominee and any other  person or persons  (naming  such person or persons)
pursuant to which the nominations are to be made by the stockholder, and (E) any
other  information  relating to such person that is required to be  disclosed in
solicitations of proxies for election of directors, or is otherwise required, in
each case pursuant to Regulation 14A under the  Securities  Exchange Act of 1934
(including  without  limitation such person's  written consent to being named in
the proxy  statement,  if any,  as  nominee  and to  serving  as a  director  if
elected). The recommendation should be addressed to our Secretary.

         All of our  directors  attended  75% or more of all the meetings of the
Board of Directors and those committees on which he served in fiscal 2004.

INFORMATION  REGARDING  STOCKHOLDER  COMMUNICATION  WITH THE BOARD OF DIRECTORS;
ATTENDANCE OF BOARD MEMBERS AT THE ANNUAL MEETING

         Stockholders may send inquiries,  comments and suggestions  directly to
our Board of Directors via mail or telephone to the Chairman of the Board at the
Company's address.

         We strongly encourage,  but do not require, Board members to attend the
Company's  Annual  Meeting of  Stockholders.  At the 2003  Annual  Stockholders'
Meeting, there were two members of the Board present.

COMPENSATION OF DIRECTORS

         Non-employee  directors  receive $6,000 per calendar year,  plus $1,000
for  each in  person  Board  of  Directors  meeting  attended  and $250 for each
telephonic  Board  of  Directors   meeting   attended.   The  Company  pays  all
out-of-pocket fees of attendance.

CODE OF ETHICS DISCLOSURE

         We have adopted a Code of Ethical Conduct which is applicable to all of
its  officers,  directors  and  employees,  including  our  principal  executive
officer,  principal financial officer,  principal accounting officer and persons
performing similar functions.  A copy of the Code of Ethical Conduct is filed as
an exhibit to our Annual Report on Form 10-KSB.


                                       12



                              AUDIT RELATED MATTERS

REPORT OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS

         The Audit Committee assists the Board in fulfilling its  responsibility
for  oversight  of the quality and  integrity  of the  accounting,  auditing and
financial reporting practices of the Company. Because our common stock is quoted
on the  OTC  Bulletin  Board(R)  (OTCBB),  we are  not  subject  to the  listing
requirements  of any securities  exchange or Nasdaq  regarding the membership of
our Audit Committee.  However, each member of the Audit Committee is independent
as defined in Rule  4200(a)(15)  for the listing  standards  of the Nasdaq Stock
Market. The Audit Committee does not have a written charter. During fiscal 2004,
the Audit Committee held one formal meeting.  In discharging its  responsibility
for  oversight  of the audit  process,  the Audit  Committee  obtained  from our
independent  registered  public accounting firm, Hein & Associates LLP, a formal
written  statement  describing  any  relationships  between the auditors and the
Company  that  might  bear on the  auditors'  independence  consistent  with the
Independent Standards Board Standard No. 1, "Independence Discussions with Audit
Committees," discussed with the auditors any relationships that might impact the
auditors'  objectivity and independence and satisfied itself as to the auditors'
independence.

         The  Audit  Committee  discussed  and  reviewed  with  the  independent
auditors the communications  required by generally accepted auditing  standards,
including those described in Statement on Auditing Standards No. 61, as amended,
"Communication  with Audit Committees" and discussed and reviewed the results of
the  independent  auditors'  examination of the financial  statements for fiscal
2004.

         The Audit  Committee  reviewed  and  discussed  the  audited  financial
statements  of the Company as of and for Fiscal 2004,  with  management  and the
independent  auditors.  Management has the responsibility for preparation of the
Company's   financial   statements  and  the   independent   auditors  have  the
responsibility   for   examination   of  those   statements.   Based   upon  the
above-mentioned  review and  discussions  with  management  and the  independent
auditors,  the  Audit  Committee  recommended  to the Board  that the  Company's
audited financial statements be included in its Annual Report on Form 10-KSB for
the fiscal year ended  December 31,  2004,  for filing with the  Securities  and
Exchange Commission.

                                                  AUDIT COMMITTEE
                                                  Michael D. Bick, PhD
                                                  N. Price Paschall
                                                  Douglas L. Ayer

SERVICES PROVIDED BY THE INDEPENDENT AUDITORS

         The audit  committee of our Board of Directors is  responsible  for the
appointment,   compensation,   retention  and  oversight  of  the  work  of  the
independent  auditors.  Accordingly,  the audit  committee has appointed  Hein &
Associates  LLP to perform  audit and other  services  for the  Company  and its
subsidiaries.  The  following  table sets forth fees for services paid to Hein &
Associates LLP, our  independent  public  accounting  firm, for the fiscal years
ended December 31, 2003 and 2004:

                                                        2004               2003
                                                      -------            -------
Audit Fees (1) ...........................            $39,170            $25,562
Audit-related fees (2) ...................                  0                  0
Tax fees (3) .............................              8,140              5,150
All other fees (4) .......................                  0                  0
                                                      -------            -------
         Total ...........................            $47,310            $30,712
                                                      =======            =======
----------
(1)      Represents fees for professional  services  provided in connection with
         the  audit  of  our  annual  financial  statements  and  review  of our
         quarterly financial statements.


                                       13



(2)      Represents  fees  for  services  provided  for  assurance  and  related
         services  reasonably  related to the performance of the audit or review
         of our financial statements (other than those reported under Audit Fees
         above).
(3)      Represents fees in connection with preparation of our federal and state
         tax returns.
(4)      During 2004 and 2003,  we did not incur any other fees related to other
         services provided.

         The audit committee  approved all of the foregoing services provided by
Hein & Associates LLP.

POLICY REGARDING PRE-APPROVAL OF SERVICES PROVIDED BY THE INDEPENDENT AUDITORS

         The audit  committee has  established a general  policy  requiring it's
pre-approval of all audit services and permissible  non-audit  services provided
by the independent auditors,  along with the associated fees for those services.
For both  types of  pre-approval,  the audit  committee  considers  whether  the
provision of a non-audit  service is consistent  with the SEC's rules on auditor
independence,  including  whether  provision  of the service (i) would  create a
mutual or conflicting interest between the independent auditors and the Company,
(ii) would place the  independent  auditors in the  position of auditing its own
work,  (iii)  would  result in the  independent  auditors  acting in the role of
management or as an employee of the Company, or (iv) would place the independent
auditors in a position of acting as an advocate for the  Company.  Additionally,
the  audit  committee  considers  whether  the  independent  auditors  are  best
positioned  and qualified to provide the most  effective and efficient  service,
based  on  factors  such  as the  independent  auditors'  familiarity  with  our
business,  personnel,  systems or risk  profile  and  whether  provision  of the
service by the  independent  auditors  would  enhance  our  ability to manage or
control risk or improve audit quality or would otherwise be beneficial to us.

                             EXECUTIVE COMPENSATION

         The  following  tables set forth  certain  information  as to our Chief
Executive  Officer  and Chief  Financial  Officer  and former  Chief  Scientific
Officer (the "Named  Executive  Officers").  No other  executive  officer of the
Company had compensation in excess of $100,000 during the period:


SUMMARY COMPENSATION TABLE


                                               ANNUAL COMPENSATION       SECURITIES
                                        ------------------------------   UNDERLYING        OTHER
NAME AND PRINCIPAL POSITION     YEAR     SALARY      BONUS    OTHER(1)     OPTIONS     COMPENSATION
----------------------------    ----    ---------   -------   --------   ----------    ------------
                                                                        
James H. Chamberlain (2)        2004     $ 45,000        --    $31,300          --             --
   Chief Executive Officer &                                                                   --
   Chief Financial Officer                                                                     --

Timothy J. Dahltorp (3)         2004     $ 80,343        --         --          --        $200,000
   Chief Executive Officer      2003     $200,000        --         --          --              --
                                2002     $200,000    20,000         --          --              --

John C. Gerdes, Ph.D. (4)       2004     $106,400        --    $ 9,495          --        $ 36,400
   Chief Scientific Officer     2003     $145,600        --         --          --              --
                                2002     $145,600        --         --          --              --
---------- 

(1)      Consists of director fees and  reimbursement of expenses  incurred as a
         director.
(2)      Mr.  Chamberlain  was  appointed  CEO and CFO effective as of March 19,
         2004.
(3)      Mr. Dahltorp resigned from the Company, effective as of March 19, 2004.
         Other compensation in 2004 consists of severance payments.
(4)      Dr.  Gerdes  employment  with the Company  terminated  effective  as of
         August 15,  2004.  Other  compensation  in 2004  consists of  severance
         payments.




                                       14



OPTION GRANTS IN LAST FISCAL YEAR

         No stock options were issued to the Names Executive Officers during the
fiscal year ended December 31, 2004.

AGGREGATED  OPTION  EXERCISES  IN LAST  FISCAL YEAR AND FISCAL  YEAR-END  OPTION
VALUES

         The  following  table  sets  forth,  for  each of the  Named  Executive
Officers,  certain  information  regarding  the number of shares of common stock
underlying  stock options held at fiscal  year-end and the value of options held
at fiscal  year-end  based upon the last reported  sales price of the underlying
securities on the OTCBB ($0.19 per share) on December 30, 2004, the last trading
day of fiscal 2004, as reported by the OTCBB.  No options were  exercised by the
Named Executive Officers during fiscal 2004.



                                                                 VALUE OF UNEXERCISED
                              NUMBER OF UNEXERCISED OPTIONS          IN-THE-MONEY
                                      AT YEAR-END                OPTIONS AT YEAR-END(1)
                              -----------------------------   ---------------------------
NAME                           EXERCISABLE / UNEXERCISABLE    EXERCISABLE / UNEXERCISABLE
---------------------------   -----------------------------   ---------------------------
                                                                       
James H. Chamberlain.......            170,000 / 0                    $ 0 / 0
Timothy J. Dahltorp (2)....               0 / 0                         --/--
John C. Gerdes, Ph.D.......               0 / 0                         --/--
----------

(1)      Determined  as the  difference  between  the  closing  trade  price  on
         December 30, 2004  ($0.19/share) and the aggregate price of the options
         covering such shares.
(2)      Mr.  Dahltorp  resigned from the Company  effective March 19, 2004. All
         options held by Mr.  Dahltorp  terminated 90 days following the date of
         his resignation.



EMPLOYMENT AGREEMENTS WITH EXECUTIVE OFFICERS

         In March 2004,  we entered into a consulting  agreement  with Mr. James
Chamberlain,  a member  of the  Board of  Directors,  pursuant  to which we have
engaged Mr. Chamberlain as our interim Chief Executive Officer and interim Chief
Financial Officer. The agreement provided for payments of $5,000 per month until
the earlier of September 2004 or the closing of a merger transaction.  While the
consulting agreement has terminated,  we are continuing to pay Mr. Chamberlain a
monthly fee of $5,000 for his services.

SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

         Section  16(a) of the  Securities  Exchange  Act of 1934,  requires our
executive  officers,  directors,  and persons who own more than ten percent of a
registered  class of our equity  securities  to file  reports of  ownership  and
changes in ownership  with the  Securities  and Exchange  Commission.  Executive
officers,  directors and  greater-than-ten  percent stockholders are required by
Securities  and Exchange  Commission  regulations to furnish us with all Section
16(a)  forms  they file.  Based  solely on our review of the copies of the forms
received by us and written  representations  from certain reporting persons that
they have  complied  with the relevant  filing  requirements,  we believe  that,
during the year ended December 31, 2004, all our executive  officers,  directors
and greater-than-ten percent stockholders complied with all Section 16(a) filing
requirements.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         Other than as described  below,  there are no proposed  transactions or
series of related  transactions,  nor were there any  transactions  or series of
related  transactions  during  fiscal 2003 and 2004,  to which the Company was a
party, in which the amount involved exceeded or will exceed $60,000 and in which
any 


                                       15



director,  executive officer,  holder of more than 5% of our common stock or
any member of the immediate  family of any of the foregoing  persons had or will
have a direct or indirect material interest.

         In March 2004,  we entered into a consulting  agreement  with Mr. James
Chamberlain,  a member  of the  Board of  Directors,  pursuant  to which we have
engaged Mr. Chamberlain as our interim Chief Executive Officer and interim Chief
Financial Officer. The agreement provided for payments of $5,000 per month until
the earlier of September 2004 or the closing of a merger transaction.  While the
consulting agreement has terminated,  we are continuing to pay Mr. Chamberlain a
monthly fee of $5,000 for his services.


                                       16



                                 PROPOSAL NO. 2:
                                   THE MERGER

GENERAL

         Our Board of Directors has  unanimously  approved the Merger  Agreement
and  the  Merger  pursuant  thereto.  Pursuant  to  the  Merger  Agreement,  our
wholly-owned subsidiary will merge with and into Alpha Innotech Corporation, the
stockholders of Alpha Innotech  Corporation will become  stockholders of Xtrana,
Inc.,  and Alpha  Innotech  Corporation  will  become  our  direct  wholly-owned
subsidiary. Alpha Innotech Corporation's address is 2401 Merced St. San Leandro,
California 94577.

         Although  stockholder approval is not required under Delaware corporate
law or our corporate charter documents, our Board of Directors is submitting the
proposal to approve the Merger to the  stockholders  for  approval at the Annual
Meeting in order to comply with the requirements of the Merger Agreement. If the
stockholders  do not  approve  the Merger of AIC Merger  Corporation  into Alpha
Innotech  Corporation,  we will  not be  able to  complete  the  Merger.  If the
proposal is approved by the  stockholders,  the Board of Directors  reserves the
right to abandon the Merger.

         In  addition,  it is a condition  to the Merger  that our  stockholders
approve  Proposal  No. 3 and Proposal No. 4 below.  The proposed  reverse  stock
split  described  in  Proposal  No. 3 and the  proposed  corporate  name  change
described in Proposal No. 4 will take effect,  if at all,  only after  Proposals
No.  2, 3 and 4 are  approved  by the  stockholders,  and  after  the  Board  of
Directors determines that we are prepared to consummate the Merger.

BACKGROUND OF THE MERGER

         In 2004, we divested ourselves of substantially all of our intellectual
property pursuant to an Assignment  Agreement with Applera  Corporation  through
its Applied  Biosystems  Group.  Pursuant to the Assignment  Agreement,  we sold
substantially  all of our  intellectual  property,  including  all  patents  and
know-how (but excluding our  trademarks  and trade names),  to Applera for total
consideration of $4,000,000.

         The  sale  of our  intellectual  property  pursuant  to the  Assignment
Agreement resulted in receipt of net proceeds of approximately $3,357,000, after
payment of all expenses associated with the transaction.  Our Board of Directors
considered  distribution of that cash as a dividend to our  stockholders as part
of a liquidation,  after  satisfaction  of all of our liabilities and payment of
all costs  associated  with the  liquidation.  Our Board of  Directors  believed
however, that we could attract interest from other businesses that might benefit
from access to those  funds,  as well as our status as a public  company  with a
clean reporting  history.  Such interest could result in us merging or otherwise
joining  together  with an existing  business  that could  create  much  greater
long-term stockholder value than simply liquidating the Company.

         Our Board of Directors began to pursue this strategy in early 2004, and
after  complying with the  requirements  of the Assignment  Agreement to provide
consulting  services,  in  August,  2004  we  terminated  all of  our  remaining
employees and our existing  lease  pursuant to an early  termination  agreement.
Since that time we have had limited overhead costs of operation,  but remained a
reporting company under the rules and regulations of the Securities and Exchange
Commission.

         During  the  first  half  of  2004,  we  evaluated   various  potential
businesses in diverse  industries.  The Board of Directors conducted an informal
search for  potential  merger  candidates.  This process  involved the directors
utilizing  their  contacts and  knowledge of various  industries  to solicit and
identify private  companies that would benefit from our status as public company
and  available  cash.  While the search 


                                       17



was not limited to companies in specific  industries or geographic  regions,  we
focused on companies in the biotechnology and medical industries.  The directors
began this process in January 2004, soon after we reached agreement with Applied
Biosystems for the sale of substantially all our assets.

         In January and  February  of 2004,  the Board of  Directors  considered
whether to engage an investment banking firm to conducts the search for a merger
candidate.  The directors  weighed the significant fees that would be charged by
investment  bankers  against the potential  benefits of having bankers to manage
the  search  for  and  execution  of a  transaction.  After  deliberations,  the
directors  determined that Xtrana and its  stockholders  would benefit by having
the directors manage the process themselves rather than incur investment banking
fees in connection with the search. In reaching this determination, the Board of
Directors  placed  importance  on  conserving  as much of our cash,  our primary
remaining asset, as possible.

         On February 4, 2004,  the entire Board of Directors met in Los Angeles,
California to explore a possible  transaction with a medical imaging company and
conduct initial due diligence. Also in attendance was a representative of Stubbs
Alderton & Markiles,  LLP, our corporate counsel. The directors met with members
of the potential  merger  partner's  management  team and engaged in preliminary
negotiations.  The Board of  Directors  met again on February 6, 2004 to discuss
the  results of the  earlier  meeting and  determined  that the private  company
believed  its value was too high  relative to the  valuation  it would assign to
Xtrana in a proposed transaction. As a result, the Board of Directors determined
not to  pursue  this  transaction  any  further  and  to  explore  other  merger
candidates.

         In March and April 2004, members of the Board of Directors continued to
explore a potential  merger with various private  companies.  Board members held
meetings with at least four potential merger  candidates.  These candidates were
all  private  companies  producing  products  for the  biotechnology  or medical
industries.  Of the candidates identified,  the Board of Directors determined in
May 2004 that Aduromed  Corporation,  a Connectucut-based  manufacturer of waste
sterilization  systems and provider of waste  disposal  services for the medical
community, presented the best opportunity for Xtrana and its stockholders.  This
determination  was based  primarily on Aduromed's  existing  products  sales and
potential for new products under development as compared to the prospects of the
other candidates.

         In evaluating each potential operating business, the Board of Directors
considered all or a majority of the following factors:

         -        strength of the operating business model;

         -        growth potential of the operating business and the industry in
                  which it operates;

         -        costs associated with effecting a merger;

         -        respective equity interest in the combined company;

         -        financial  strength as displayed by  historical  and projected
                  margins;

         -        scalability of the business;

         -        capital requirements of the operating business;

         -        competitive position of the operating business;

         -        stage of development of the product, process or service of the
                  operating business;


                                       18



         -        degree  of  current  or  potential  market  acceptance  of the
                  product, process or service of the operating business; and

         -        proprietary  features and degree of  intellectual  property or
                  other  protection  of the  product,  process or service of the
                  operating business.

         In June, 2004, after conducting  preliminary due diligence,  we entered
into a non-binding letter of intent to merge with Aduromed Corporation. However,
in September  2004, we announced that we had ended  negotiations  and terminated
the  non-binding  letter of intent with  Aduromed as result of our due diligence
investigation of Aduromed and its business. Our decision to terminate discussion
with  Adorumed  was a  result  of a  change  in  Aduromed's  financial  position
following  execution of the letter of intent,  lack of  experience of Adorumed's
management  team in operating a public company and delays in negotiations of the
definitive agreements.

         Following  termination of discussions  with Aduromed  Corporation,  the
Board of Directors  continued to explore other potential  businesses,  including
Alpha  Innotech  Corporation,  interested  in merging  with our  company.  James
Chamberlain  is a director  of a private  biosciences  company of which  William
Snider,  an Alpha Innotech  director,  is also a director.  Mr.  Chamberlain was
initially introduced to Alpha Innotech through discussions with Mr. Snider on or
about August 25, 2004. In this initial  discussion,  Mr. Snider  described Alpha
Innotech's  general business and current financial  condition,  Mr.  Chamberlain
outlined  Xtrana's  status and search for a merger  partner,  and they discussed
potential benefits to both parties of a business combination. After we expressed
interest in a potential  transaction,  Mr. Chamberlain  contacted Mr. Snider and
the parties  began initial  discussions  and due  diligence  investigations,  as
described in more detail below.

         On August 30, 2004,  James  Chamberlain  and Michael Bick visited Alpha
Innotech and met with members of Alpha Innotech's management team and directors,
including  Haseeb  Chaudhry  (CEO),  Darryl Ray  (President)  and Nagesh  Mahtre
(Chairman).  At the meeting,  Alpha Innotech gave Mr. Chamberlain and Dr. Bick a
presentation  regarding Alpha Innotech's  business and operations.  In addition,
the parties discussed proposed terms of a merger transaction in which the Xtrana
stockholder  would retain 15% of the outstanding  shares of the combined company
and receive additional  warrants to purchase common stock. The consideration was
determined by  arms-length  negotiations  between the parties and based upon the
relative  values  attributed  by the parties to Alpha  Innotech's  business  and
Xtrana's status of a public company and available cash. In connection with these
negotiations,  the Xtrana Board of Directors  believed  that the value of Xtrana
was approximately $3.2 to $3.3 million,  consisting primarily of our cash at the
time of $3 million and an additional  $0.2 to $0.3 million  attributable  to our
status as a public company.  Our Board of Directors believed that the enterprise
value of Alpha  Innotech  was in the range of  approximately  $14 million to $16
million,  which valuation was based on a multiple of approximately 1.4 to 1.5 of
Alpha Innotech's  revenues for 2003. The Board of Directors assumed this revenue
multiple figure by taking into account revenue multiple of comparable  companies
that had  recently  been  acquired of 2 to 4 times twelve  month  revenues,  and
applying  a lower  multiple  to  Alpha  Innotech  due to  factors  such as Alpha
Innotech's  smaller  size and the fact that Alpha  Innotech  was  incurring  net
losses.

         On September 7, 2004,  James  Chamberlain and John Gerdes visited Alpha
Innotech and met further senior members of Alpha Innotech's  management team. At
this meeting,  Dr. Gerdes reviewed and analyzed Alpha Innotech's  technology and
intellectual property rights.

         The Board of Directors determined that Alpha Innotech provided the best
potential for long-term value to the Xtrana stockholders of any of the potential
opportunities  identified by the Board of Directors and met the primary criteria
established  by the  Board  of  Directors  in its  review  of  potential  merger
partners, including established products in the marketplace,  revenue production
and a management team


                                       19



in place. In addition,  the Board of Directors  considered the markets for Alpha
Innotech's existing products and products in development as compared to those of
other  merger  candidates.  The Board of Directors  determination  to pursue the
transaction  with Alpha  Innotech  was also based on the  proposed  terms of the
transaction  with Alpha  Innotech,  including  the  percentage  of the  combined
company that would be owned by Xtrana stockholders  following completion,  which
the directors  determined  provided the most value to the Xtrana stockholders as
compared to the terms offered by other candidates.

         On September 24, 2004, our Board of Directors held a meeting and, based
on the factors  described  above,  approved the proposed  terms of a transaction
with Alpha Innotech and authorized us to negotiate a definite merger  agreement.
Following that meeting, we began negotiations with Alpha Innotech Corporation on
a  definitive   agreement   and  engaged  in  a  more   detailed  due  diligence
investigation.  In the course of  negotiation of the  definitive  agreement,  we
agreed  with  Alpha  Innotech  that the  Xtrana  stockholders  would  retain 17%
ownership of the combined company immediately following the closing, but that no
warrants would be issued the Xtrana stockholders so as to simplify the structure
of the  transaction  while  maintaining  roughly the same relative values of the
companies in the  transaction.  In order to assist Alpha  Innotech with its cash
flow requirements, we also agreed to advance $500,000 to Alpha Innotech pursuant
to a secured promissory note following execution of a definitive agreement.

         In early December 2004, the last remaining  items of due diligence were
completed by both parties and their  respective  legal  counsel and  independent
auditors.  Our  Board  of  Directors  met on  December  2,  2004 to  review  the
definitive Merger Agreement and other transaction documents,  including the form
of $500,000 secured  promissory note. The Board unanimously  approved the merger
transaction with Alpha Innotech pursuant to the Merger Agreement and other terms
and conditions of the transaction.  In approving the  transaction,  the Board of
Directors  determined that the Merger was fair to, and in the best interests of,
Xtrana and  stockholders,  and  recommended  that the  stockholders  approve the
Merger. Our Board of Directors also approved the formal engagement of The Mentor
Group,  Inc. to render an opinion as to the fairness,  from a financial point of
view, of the Merger to our existing stockholders.

         In  determining  to approve  the  transaction,  the Board of  Directors
primarily  relied  upon  its  due  diligence  review  of  Alpha  Innotech,   its
consideration  of the terms of the  transaction  with respect to the Company and
its  stockholders  and  discussions  between James  Chamberlain  and the Board's
financial advisors. The due diligence review included, without limitation, Alpha
Innotech's  audited  annual and unaudited  interim  financial  information,  the
results of the legal,  technical  and business due diligence  investigations  of
Alpha Innotech  conducted by the Company and its advisors,  and  discussions and
meetings with Alpha Innotech management as described above.

         In addition,  James  Chamberlain,  a member of the Board of  Directors,
consulted our financial  advisor,  The Mentor Group,  Inc. prior to the Board of
Directors  approving the Merger  Agreement.  Mr.  Chamberlain first met with The
Mentor Group on or about November 17, 2004 to discuss the possible engagement of
The Mentor Group to render a fairness opinion. In this meeting,  Mr. Chamberlain
outlined the basic structure of the potential  transaction,  without identifying
Alpha Innotech by name. The Mentor Group also discussed with the Mr. Chamberlain
the amount of its fees for the proposed engagement.

         Mr. Chamberlain subsequently talked to The Mentor Group by telephone on
or about November 30, 2004. In this discussion, Mr. Chamberlain described to The
Mentor Group the terms of the proposed transaction and Alpha Innotech's business
and financial condition,  and asked The Mentor Group for its initial thoughts on
the likelihood of the transaction  being  determined as fair to our stockholders
from a financial point of view. While The Mentor Group had not yet conducted its
own independent due diligence  investigation,  based on the information provided
to the The Mentor  Group by us, The Mentor Group  indicated  to Mr.  Chamberlain
that there was a high  likelihood that the it would determine the 


                                       20



transaction to be fair to our  stockholders  from a financial point of view. Mr.
Chamberlain  subsequently described these conversations with The Mentor Group to
the other  directors.  This  indication  by The Mentor  Group was based upon the
description  of the  material  terms  and  conditions  of the  transaction,  the
description of the Alpha  Innotech  business and products and the Alpha Innotech
financial  information provided to The Mentor Group by us, as well as The Mentor
Group's  understanding  of  values  of  comparable  companies.   Based  on  this
information  available  to  The  Mentor  Group  at  the  time,  it  conducted  a
preliminary  analyses  of  enterprise  valuation  of Alpha  Innotech  based upon
revenue  multiples  for  comparable  companies and compared this to the value of
Xtrana  based upon its asset  value.  The  Mentor  Group's  indication  in these
discussions  with the board was subject to  completion  of its own due diligence
investigation, financial analyses and the delivery of its opinion letter.

         On December  10, 2004,  the Alpha  Innotech  Board of Directors  held a
meeting and unanimously approved the Merger Agreement.  The Merger Agreement and
related  agreements  were  executed and delivered by the parties on December 14,
2004. On December 14, 2004, we issued a press release  announcing  the execution
of the Merger Agreement.

         In April 2005,  we entered into an  amendment  to the Merger  Agreement
with Alpha Innotech. The amendment was negotiated and executed in light of Alpha
Innotech's  needs for  additional  cash  prior the  closing of the Merger and to
clarify the  parties'  intent with respect to certain  provisions  of the Merger
Agreement. The amendment included the following changes to the Merger Agreement:

         -        amending  the  definition  of "Minimum  Closing  Date Cash" to
                  clarify the parties' intent that the $500,000 would reduce the
                  amount cash Xtrana is required to have at closing;

         -        remove the covenant from the Merger  Agreement  that permitted
                  to company to pay accrued deferred compensation  following the
                  closing  of the Merger to certain  Alpha  Innotech  management
                  only out of  available  cash  over a  specified  minimum  cash
                  reserve;

         -        add a condition  to closing of the Merger that Alpha  Innotech
                  obtain  at  least  $1.5  in  additional  financing,  on  terms
                  reasonably acceptable to Xtrana, prior the closing; and

         -        add a condition  to closing  that each of Haseeb  Chaudhry and
                  Darryl  Ray  enter  into   amendments   to  their   employment
                  agreements  with Alpha  Innotech to reduce  their  annual base
                  salaries to $100,000.

         Alpha  Innotech   subsequently   obtained  a  $1.5  million  loan  from
Alexandria  Finance,  LLC, as  described  below in further  detail,  and Messrs.
Chaudhry and Ray have executed the employment  agreement  amendments required by
the Merger Agreement amendment.

         On April 21, 2005, The Mentor Group, Inc.  delivered its opinion to our
Board of Directors that the Merger was fair,  from a financial point of view, to
our  stockholders.  The full  text of The  Mentor  Group's  written  opinion  is
attached to this proxy  statement  as Appendix B. We  encourage  you to read the
opinion  carefully in its entirety for a description  of the  assumptions  made,
procedures   followed,   matters   considered  and  limitations  on  the  review
undertaken.  For  further  information,  see  "Opinion of  Financial  Advisors,"
beginning on page 28 of this proxy statement.


                                       21



        On June 15, 2005,  we were  informed by the  California  Department  of
Corporations  that  our  request  for a  fairness  hearing  on the  issuance  of
securities in the Merger had been denied due to a newly  implemented  Department
policy.  As a result, we entered into a second amendment to the Merger Agreement
with  Alpha  Innotech  on July 1,  2005.  This  second  amendment  included  the
following changes to the Merger Agreement:

         -        memorializing  the  adjusted  exchange  ratios for the Merger,
                  which  were  adjusted  pursuant  to the  terms  of the  Merger
                  Agreement to ratios described in this Proxy Statement;

         -        elimination of the requirement  for a fairness  hearing before
                  the California  Department of  Corporations  as a condition to
                  closing of the Merger;

         -        the addition as a closing  condition  that the Alpha  Innotech
                  execute  and  delivery  investment  representation  letters in
                  connection  with  their  acquisition  of our  shares of common
                  stock in the Merger;

         -        the  addition  of a covenant of the  combined to register  for
                  resale the shares issued to the Alpha Innotech shareholders in
                  the event that the company  becomes  eligible  for use of Form
                  S-3 for such registration;

         -        an extension of the termination  date for the Merger Agreement
                  from July 31, 2005 to September  30, 2005,  as a result of the
                  delays  in  connection  with the SEC's  review  of this  Proxy
                  Statement; and

         -        change  in  the  date  of   termination   of  the  escrow  and
                  indemnification period to March 31, 2006.

         As a result of the  amendment,  we agreed with Alpha  Innotech that the
shares of our common stock  issued in the Merger would be issued  pursuant to an
exemption  from  registration  under  Regulation  D and/or  Section  4(2) of the
Securities Act of 1933, that such shares would be "restricted  securities" under
the Securities Act in the hands of the Alpha Innotech  shareholders and that the
company  would  agree to register  such shares for resale by the Alpha  Innotech
shareholders  if  and  when  we  become  eligible  for  us  Form  S-3  for  such
registration.

THE MERGER AGREEMENT

         The  following  description  of  the  terms  of  the  Merger  Agreement
summarizes  the material  terms and  conditions  of the Merger  Agreement.  This
summary  description is qualified in its entirety by the full text of the Merger
Agreement,  which is incorporated  into this Proxy Statement by reference and is
attached as APPENDIX A.

         MERGER. Pursuant to the Merger Agreement,  our wholly-owned subsidiary,
AIC Merger  Corporation  will merge with and into Alpha Innotech.  Each share of
Alpha Innotech  outstanding  prior to the Merger will convert into Xtrana common
stock, and all shares of AIC Merger Corporation  outstanding prior to the Merger
will convert into one share of Alpha Innotech common stock. Specifically, at the
effective time of the Merger the following will occur:

         (1)  each issued and  outstanding  share of Alpha Innotech common stock
              will be converted  into the right to receive  0.1142909  shares of
              our common stock, subject to adjustment;


                                       22



         (2)  each  issued  and  outstanding  share of Alpha  Innotech  Series A
              Preferred  Stock  will be  converted  into the  right  to  receive
              0.3033634 shares of our common stock, subject to adjustment;

         (3)  each issued and  outstanding  share of Alpha  Innotech  Series A-1
              Preferred  Stock  will be  converted  into the  rights to  receive
              0.3033634 shares of our common stock, subject to adjustment;

         (4)  each issued and outstanding Alpha Innotech option and warrant will
              be assumed by us or replaced with options and warrants to purchase
              our common stock on  substantially  identical terms and subject to
              proportionate adjustment of the underlying shares and the exercise
              price based on the applicable exchange ratio; and

         (5)  each issued and outstanding  share of AIC Merger  Corporation will
              be converted into one (1) share of Alpha Innotech.

         The shares of our common stock issued to the holders of Alpha  Innotech
equity  securities  upon the  Merger  is  referred  to  herein  as the  ("Merger
Consideration").  In  addition,  it is a condition to the closing that we have a
specified  minimum  amount of cash and cash  equivalents  at the  closing of the
Merger,  which  amount is  $2,450,000  less certain  expenses  incurred by us in
connection  with the Merger.  In accordance with the Merger  Agreement,  we have
previously advanced Alpha Innotech $500,000 pursuant to secured promissory note.

         ESCROW. Of the Merger Consideration, 500,000 shares of our common stock
will be issued and placed in an escrow  account until March 31, 2006, and may be
cancelled  if Alpha  Innotech  is liable for damages  under the  indemnification
provisions  of the Merger  Agreement  (the  "Holdback  Shares").  An  additional
500,000  shares of our common  stock  will be issued and placed in escrow  until
March 31,  2006 and may be  released to Alpha  Innotech  stockholders  if we are
liable for damages under the indemnification  provisions set forth in the Merger
Agreement (the "AIC Indemnification Shares").

         EFFECTIVE  TIME.  The Merger  will occur on the date and at the time of
the closing.  It is anticipated that the effective time of the Merger will occur
as soon as practicable  following  stockholder  approval and satisfaction of the
other conditions to closing.

         EXCHANGE OF ALPHA INNOTECH STOCK  CERTIFICATES.  As soon as practicable
after the  consummation of the Merger,  we will mail to each holder of record of
Alpha  Innotech  stock  immediately  prior to the  effective  time a  letter  of
transmittal  and   instructions   for  surrendering  the  Alpha  Innotech  stock
certificates in exchange for Xtrana stock certificates.

         CONDUCT OF BUSINESS  PRIOR TO THE  MERGER.  From the date of the Merger
Agreement  until the effective  time of the Merger,  we and Alpha  Innotech each
agreed (unless otherwise  mutually agreed in writing),  among other things,  not
to:

         o        amend their certificates of incorporation or bylaws other than
                  pursuant to the Merger Agreement;

         o        make changes in accounting practices;

         o        engage  in  any  transaction  or  create  any  lien  or  other
                  encumbrance   upon  any  of  its  assets  which  will  not  be
                  discharged in full prior to the effective  date of the Merger,
                  except in the normal and ordinary course of business;

         o        sell, exchange,  lease assign, or otherwise transaction any of
                  its  assets,  or  cancel  or  compromise  any  debts or claims
                  related  to their  assets,  other  than for fair  value in the
                  ordinary course of business and consistent with past practice;


                                       23



         o        authorize or issue additional capital stock;

         o        declare  dividends  on or redeem  or  repurchase  its  capital
                  stock;

         o        pay,  discharge,  settle or satisfy any claims or  liabilities
                  outside the ordinary course of business;

         o        form any subsidiary;

         o        take certain actions with respect to employee benefit plans;

         o        cancel or allow to expire any  insurance  policy listed in the
                  schedules to the Merger Agreement;

         o        make  any   expenditure   or  enter  into  any  commitment  or
                  transaction  exceeding  $30,000  other  than  in the  ordinary
                  course of business consistent with past practices; or

         o        enter  into  an  agreement  not  in  the  ordinary  course  of
                  business.

         REPRESENTATIONS AND WARRANTIES.  The provisions of the Merger Agreement
contain customary representations and warranties of both us and AIC Merger Corp.
and Alpha Innotech relating to, among other things:

         o        organization and similar corporate matters;

         o        capital structure;

         o        authorization,    execution,    delivery,    performance   and
                  enforceability of the Merger Agreement and related matters;

         o        licenses, permits and authorizations required for Merger; 

         o        compliance with laws;

         o        absence of breaches or defaults  under any agreements we are a
                  party to;

         o        financial statements and absence of undisclosed liabilities;

         o        absence of undisclosed litigation;

         o        employment matters;

         o        taxes; and

         o        required compliance,  consents or approvals, and violations of
                  any agreements or laws.

         COVENANTS.  We agreed to seek  stockholder  approval  of the  Merger by
conducting  a  meeting  of our  stockholders.  We also  agreed  to  conduct  our
operations in the ordinary  course of the business  during the period leading up
to the closing and to comply in all material respects with our obligations under
the Merger Agreement.


                                       24



         CONDITIONS  OF  THE  MERGER.   Our   obligations   and  Alpha  Innotech
Corporation's  obligations  to  consummate  the  Merger  are  subject to certain
conditions, any of which may be waived, including, without limitation:

         o        we shall have obtained the affirmative  vote of the holders of
                  a  majority  of  shares  of our  common  stock in favor of the
                  Merger;

         o        we shall  have cash and cash  equivalents  at the  closing  in
                  amount equal to $2,450,000 less certain  expenses  incurred in
                  connection with the Merger;

         o        we shall have implemented a 1-for-10 reverse stock split;

         o        we shall have procured the  resignations of the members of our
                  Board of Directors not  continuing as directors  following the
                  Merger and all of our executive officers;

         o        Alpha Innotech shall have obtained the affirmative vote of the
                  holders of at least 90% of the issued and  outstanding  shares
                  of its capital stock in favor of the Merger;

         o        no Alpha  Innotech  shareholders  shall have  dissented to the
                  Merger  or be  entitled  to  exercise  dissenters'  rights  in
                  connection with the Merger;

         o        Alpha   Innotech's   aggregate    obligations   for   deferred
                  compensation shall not be more than $550,000;

         o        neither  party  shall  be  subject  to any  order,  decree  or
                  injunction  of a court  that  would  delay  or  prevent  total
                  completion of the Merger; and

         o        the parties shall confirm the truth of the representations and
                  warranties of each party contained in the Merger  Agreement as
                  of the date of the Merger.

         ALPHA INNOTECH LOAN FROM  ALEXANDRIA.  Pursuant to the Merger Agreement
amendment entered into in April 6, 2005, the Merger Agreement was amended to add
as a condition to closing of the Merger that Alpha  Innotech  obtain  additional
financing in the amount of at least $1,500,000. On April 8, 2005, Alpha Innotech
secured a loan in the amount of $1,500,000  from  Alexandria  Finance,  LLC. The
loan bears interest at the rate of 12.5% per annum and the outstanding principal
amount of the loan is due and payable in 30 equal monthly installments beginning
on  November  1, 2005.  The  obligations  under the loan are secured by a second
priority  lien and  security  interest  in  substantially  all  assets  of Alpha
Innotech.  Alpha  Innotech has issued a seven-year  warrant to purchase  900,000
shares of its Common Stock at a purchase  price of $0.20 per share to Alexandria
Finance LLC in connection with this loan  financing.  ETP Finance LLC, an entity
in which  William  Snider (a  director  of Alpha  Innotech  who would  also be a
director  of the  Company  following  completion  of  the  Merger)  owns  an 80%
beneficial  interest,  received 20% of the loan  origination  fee and 20% of the
warrants  issued to  Alexandria  Finance LLC as  compensation  for arranging the
financing transaction with Alexandria Finance, LLC. In addition, ETP Finance LLC
will receive a percentage of profits  received by Alexandria  Finance,  LLC over
the life of the loan as additional consideration for its services.

         TERMINATION;  TERMINATION  FEE. The Merger Agreement may be terminated,
and the Merger abandoned, at any time prior to the closing:

         o        by mutual written consent of the parties;

         o        by either  party if any  governmental  entity  issues an order
                  restraining the consummation of the Merger,


                                       25



         o        by either Alpha Innotech or us if the closing has not occurred
                  by  September  30,  2005  (unless  the failure to close is the
                  result of a terminating party's failure to act),

         o        by  either  party  in  the  event  other  party  breaches  its
                  representations under the Merger Agreement;

         o        by  either  party  if our  stockholders  fail to  approve  the
                  Merger, and

         o        by either party if a material  adverse  change with respect to
                  the business of other party has occurred prior to the closing.

         In the event  that the  Merger  Agreement  is  terminated  because  the
closing has not occurred by September 30, 2005, or by Alpha Innotech  because of
an  adverse  change  in our  business,  or a breach of our  representations  and
warranties,  or by Alpha Innotech  because our  stockholders  do not approve the
Merger,  then we will be  obligated  to pay Alpha  Innotech  $100,000  by offset
against the obligations of Alpha Innotech pursuant to a $500,000 promissory note
issued by Alpha  Innotech to us  pursuant to the terms of the Merger  Agreement.
The Merger  Agreement  does not  provide  for Alpha  Innotech  to pay a specific
termination fee to us under any circumstances.  However, upon termination of the
Merger  Agreement for any reason,  the $500,000  promissory note issued by Alpha
Innotech to us will become due and payable six months from the termination date.

         INDEMNIFICATION.  Until March 31, 2006,  each of us and Alpha  Innotech
are obligated to indemnify each other, for any loss arising from (a) a breach of
any  representations  and warranties in the Merger  Agreement,  (b) a failure to
perform or comply in any material  respect  with any  covenant  contained in the
Merger  Agreement,  (c) any claim by any person for brokerage or finders fees in
connection  with the  Merger  or (d) any  litigation,  action  or  investigation
arising out of our business prior to the Merger. Our indemnification obligations
include any claim by Applera  Corporation,  Applied  Biosystems Group against us
for indemnification pursuant to that certain Assignment Agreement between us and
Applied Biosystems dated January 26, 2004.

         No claims  are  payable  by either  party  unless  the  damages  exceed
$100,000.  Our sole remedy for any indemnification claims against Alpha Innotech
or its  shareholders  is a right to set off any  damages  against  the  Holdback
Shares. Alpha Innotech's sole remedy for any indemnifications  claims against us
is a right to  receive  additional  shares  of our  common  stock out of the AIC
Indemnification  Shares. The value of the Holdback Shares or AIC Indemnification
Shares is deemed, by the terms of the Merger Agreement, to be the average of the
closing bid and asked prices for our common stock, as reported on the OTCBB, for
the ten (10) trading day period  commencing on the date of the Merger  (adjusted
as necessary for the reverse stock split).

         EXPENSES.  We and Alpha Innotech will each pay all of our own costs and
expenses  incurred  in  connection  with the  transactions  contemplated  hereby
including,  without limitation, all fees and expenses of attorneys,  accountants
and financial advisors, except that we agreed to pay certain accounting expenses
of Alpha Innotech.

MANAGEMENT AND OPERATIONS FOLLOWING THE MERGER

         Alpha  Innotech  will be the  surviving  corporation  in the Merger and
become our wholly-owned subsidiary,  and at the effective time of the Merger AIC
Merger  Corp.  will cease to exist as a separate  corporate  entity.  AIC Merger
Corp.'s  Certificate  of  Incorporation  and Bylaws will be the  certificate  of
incorporation and bylaws of the combined corporation.  The Merger will result in
a change of control of the  Company,  with the  existing  shareholders  of Alpha
Innotech  owning   approximately  83%  of  our  outstanding  shares  immediately
following completion of the Merger.


                                       26



         Pursuant to the Merger Agreement, at the effective time Haseeb Chaudhry
will become our Chief  Executive  Officer and Darryl Ray, Ph.D.  will become our
President,  Acting Chief  Accounting  Officer and Chief  Operating  Officer.  In
addition,  the Board of Directors has agreed to take all actions  necessary such
that,  immediately  following  the  effective  date of the Merger,  our board of
directors will consist of the following individuals:

                              Nagesh Mhatre, Ph.D.
                                 Haseeb Chaudhry
                                Darryl Ray, Ph.D.
                                 William Snider
                               Michael Bick, Ph.D.
                                James Chamberlain

MERGER CONSIDERATION

         Upon  consummation  of the  Merger,  we  will  issue  an  aggregate  of
approximately  8,072,482  shares of our common  stock  (taking  into account the
reverse  split) in exchange for all the issued and  outstanding  shares of Alpha
Innotech  common stock and Alpha Innotech  preferred  stock.  As a result of the
Merger,  Alpha Innotech  stockholders will hold  approximately 83% of our issued
and  outstanding  common  stock  and  stockholders  who  held our  common  stock
immediately  prior to the Merger will hold  approximately  17% of our issued and
outstanding common stock (excluding options and warrants).  No fractional shares
of our common stock will be issued. Instead, any fractional share amounts of 0.5
or higher  will be  rounded up to a full  share of common  stock and  fractional
share  amounts  of less than 0.5 will be rounded  down to the next whole  share.
According  to the  Merger  Agreement,  all shares of Alpha  Innotech  common and
preferred stock will automatically be cancelled and shall cease to exist.

         Pursuant to the Merger  Agreement,  of the total Merger  consideration,
500,000  shares of our common  stock will be issued and  deposited  in escrow to
satisfy Alpha Innotech's  indemnification  obligations,  and 500,000  additional
shares of our common stock will be issued and deposited in escrow to satisfy our
indemnification obligations as described above.

         It is a condition  to the Merger that we have a minimum  amount of cash
and cash  equivalents  at the  closing of the Merger,  which  amount is equal to
$2,450,000 less certain  expenses  incurred by us in connection with the Merger.
The cash will be  available  for the  operations  and  expenses of the  combined
company  following  the  completion  of the  Merger,  and  will  not be  paid as
additional  consideration to the Alpha Innotech  shareholders.  In addition,  in
accordance with the Merger Agreement, we have previously advanced Alpha Innotech
$500,000 pursuant to secured promissory note. If the Merger is not completed for
any  reason,  all  obligations  under this note will  become due and payable six
months following the termination of the Merger Agreement.

BOARD OF DIRECTORS' REASONS FOR THE MERGER

         Our  Board  of  Directors  identified  and  investigated  a  number  of
potential  opportunities  for merger partners.  The Board of Directors  believes
that Alpha  Innotech  provides the best  potential  for  long-term  value to our
stockholders  of  the  potential  opportunities  we  identified.  The  Board  of
Directors determined that Alpha Innotech met the primary criteria established by
the  Board  of  Directors  in  its  review  of  potential  merger  partners.  In
particular, Alpha Innotech:

         o        is a revenue producing company;
         o        has established products in the marketplace; and
         o        new products expected to be introduced into the marketplace in
                  2005.


                                       27



         The  decision  of our  Board  of  Directors  to enter  into the  Merger
Agreement  was based on an  analysis of a number of factors  including,  but not
limited to, the following:

         o        a review of our and Alpha Innotech's results of operations and
                  financial condition;
         o        review of potential benefits and opportunities of the combined
                  business  including a greater customer base, greater resources
                  and increased operating efficiencies;
         o        the Board of  Director's  belief that  combined  resources and
                  capital of us and Alpha  Innotech  will serve as a  foundation
                  for the surviving company to become an increasingly aggressive
                  and effective competitor in all aspects of the industry;
         o        discussions between a member of our Board of Directors and our
                  financial advisor, as described below;
         o        Xtrana's  strategic  alternatives,  including a liquidation of
                  the company,  and  alternatives for enhancement of stockholder
                  value;
         o        the fact that our  stockholders  will have the  opportunity to
                  vote upon the proposed  issuance of Xtrana common stock in the
                  Merger;
         o        reports of management,  legal and financial advisors as to the
                  results of the due diligence investigation of Alpha Innotech;
         o        the fact that Xtrana  would have board  representation  of the
                  combined company; and 
         o        the terms  and  conditions  of the  Merger  Agreement  and all
                  related transactions.

         Our Board of  Directors  also  identified  and  considered a variety of
potential   negative  factors  in  its  deliberations   concerning  the  Merger,
including, but not limited to:

         o        the risk that the  benefits  sought in the Merger would not be
                  fully achieved;
         o        the risk that,  notwithstanding  the long-term benefits of the
                  Merger, our stock price might decline in the short term;
         o        the possibility that the Merger might not be completed or that
                  completion  might be  unduly  delayed,  and the  effect of the
                  public announcement of the Merger on our stock price;
         o        the  expenses  and  costs  to be  incurred  by us in  pursuing
                  completion of the Merger;  
         o        the fact that Alpha Innotech has not been profitable;
         o        the  risks  that new  Alpha  Innotech  products  would  not be
                  accepted by the marketplace;
         o        the likelihood  that Alpha  Innotech would require  additional
                  capital to develop its products;
         o        the risk of collection of the $500,000  promissory note issued
                  to us by Alpha  Innotech  should the Merger not be  completed;
                  and
         o        other risks  associated  with the  business of Alpha  Innotech
                  described in the Section entitled "Risk Factors"  beginning on
                  page 40 of this proxy statement.

         Our Board of Directors  believes that these  negative  factors could be
managed or mitigated by Xtrana or the combined  company or were unlikely to have
a material  impact on the Merger or combined  company,  and that,  overall,  the
potentially  negative factors  associated with the Merger were outweighed by the
potential  significant  benefits to be gained by the Merger.  For  example,  the
Board of  Directors  believed,  after  considering  the  potential  benefits and
negative factors associated with the Merger, that:

         o        the Merger could be  completed on the proposed  terms and in a
                  timely manner;
         o        the  potential  long-term  value  to our  stockholders  of the
                  Merger was greater than the available alternatives,  including
                  a liquidation of the company;
         o        costs  related to the Merger would be exceeded by the proposed
                  benefits of the Merger;
         o        the combined would benefit from our available cash and provide
                  the Alpha Innotech business with the capital necessary to fuel
                  its growth;
         o        integration  risks and costs would be minimal since Xtrana has
                  already ceased substantially all operations; and


                                       28



         o        our Board of Directors' and management  team's experience with
                  prior acquisitions created confidence that the Merger could be
                  completed successfully.

         In addition,  James  Chamberlain,  a member of the Board of  Directors,
consulted our financial  advisor,  The Mentor Group,  Inc. prior to the Board of
Directors  approving the Merger  Agreement.  Mr.  Chamberlain first met with The
Mentor Group on or about November 17, 2004 to discuss the possible engagement of
The Mentor Group to render a fairness opinion. In this meeting,  Mr. Chamberlain
outlined the basic structure of the potential  transaction,  without identifying
Alpha Innotech by name. The Mentor Group also discussed with the Mr. Chamberlain
the amount of its fees for the proposed engagement.

         Mr. Chamberlain subsequently talked to The Mentor Group by telephone on
or about November 30, 2004. In these discussions,  Mr. Chamberlain  described to
The Mentor  Group the terms of the  proposed  transaction  and Alpha  Innotech's
business  and  financial  condition,  and asked The Mentor Group for its initial
thoughts on the likelihood of the  transaction  being  determined as fair to our
stockholders  from a financial point of view. While The Mentor Group had not yet
conducted  its  own  independent  due  diligence  investigation,  based  on  the
information  provided to the The Mentor Group by us, The Mentor Group  indicated
to Mr.  Chamberlain that there was a high likelihood that the it would determine
the transaction to be fair to our  stockholders  from a financial point of view.
Mr. Chamberlain subsequently described these conversations with The Mentor Group
to the other  directors.  This indication by The Mentor Group was based upon the
description  of the  material  terms  and  conditions  of the  transaction,  the
description of the Alpha  Innotech  business and products and the Alpha Innotech
financial  information provided to The Mentor Group by us, as well as The Mentor
Group's  understanding  of  values  of  comparable  companies.   Based  on  this
information  available  to  The  Mentor  Group  at  the  time,  it  conducted  a
preliminary  analyses  of  enterprise  valuation  of Alpha  Innotech  based upon
revenue  multiples  for  comparable  companies and compared this to the value of
Xtrana  based upon its asset  value.  The  Mentor  Group's  indication  in these
discussions  with the board was subject to  completion  of its own due diligence
investigation, financial analyses and the delivery of its opinion letter.

         The foregoing discussion of material factors considered by the Board of
Directors is not  intended to be  exhaustive,  but does set forth the  principal
factors  considered  by the  Board  of  Directors.  In  reaching  the  unanimous
determination  to approve  and  recommend  approval  and  adoption of the Merger
pursuant  to the  Merger  Agreement,  in view of the  wide  variety  of  factors
considered in connection with its evaluation thereof, the Board of Directors did
not assign any relative or specific  weights to the factors set forth above, and
individual directors may have given differing weights to the different factors.

         The Board of Directors  believes that the Merger is  advisable,  and is
fair to and in the best interests of Xtrana and its stockholders.

MATERIAL FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER TO STOCKHOLDERS

         There are no direct income tax  consequences  to our  stockholders as a
result of the Merger.

REGULATORY APPROVALS

         We are not aware of any material  governmental  or regulatory  approval
required for completion of the Merger, other than the filing of a certificate of
merger with the  California  Secretary of State and compliance  with  applicable
corporate law of the State of Delaware and the State of California. The issuance
of Xtrana common stock in the Merger is intended to be a transaction exempt from
registration  under  Regulation D of the Securities Act of 1933, as amended.  If
the  Merger is  completed,  Xtrana  will file a Form D with the  Securities  and
Exchange  Commission in order to comply with Form D and will undertake any other
actions and/or filings required by any applicable state securities laws.


                                       29



INTEREST OF CERTAIN PERSONS IN THE MERGER

         Except as described below, no director,  executive officer or associate
of any director or executive  officer has any  substantial  interest,  direct or
indirect,  by security  holdings or otherwise,  in the proposed Merger which are
not  shared by all other  stockholders  on the basis of their  respective  share
holdings.

         Each of our directors  holds  options to purchase  shares of our common
stock.  The  Compensation  Committee  of our  Board  of  Directors  has  adopted
resolutions providing for amendment of all outstanding options,  effective as of
and contingent upon the occurrence of the closing of the Merger, to provide that
regardless  of the  termination  of the  optionee's  service,  the options shall
continue to be  exercisable  by the  optionee  for a period of time equal to the
lesser of five years from the closing date of the Merger and the remaining  term
of such option.

         If the Merger is completed, Dr. Bick and Mr. Chamberlain will remain on
the Board of Directors,  all other director  nominees named in Proposal No. 1 of
this Proxy Statement will resign from the Board.

VOTE REQUIRED FOR APPROVAL OF THE MERGER

         The  affirmative  vote of a majority of the  outstanding  shares of our
common stock entitled to vote is required to approve the Merger  pursuant to the
Merger Agreement.

NO APPRAISAL RIGHTS

         Under  Delaware  law,  you are not  entitled to  dissenter's  rights of
appraisal with respect to the amendment of the Certificate of Incorporation  and
the reverse stock split.

OPINION OF FINANCIAL ADVISOR TO THE BOARD OF DIRECTORS

     GENERAL

         We retained The Mentor Group,  Inc.  ("Mentor") to render an opinion to
the Board of Directors  that the  Transaction  (defined  below)  pursuant to the
terms and  conditions of the Merger  Agreement  dated  December 14, 2004 and the
amendment  to  the  Merger  Agreement  dated  April  6,  2005  relating  to  the
Transaction,  is fair,  from a financial  point of view, to the  pre-Transaction
common   shareholders  of  Xtrana.  The  Consideration  was  determined  through
negotiations between Xtrana, Inc. and Alpha Innotech Corporation.

         The Board retained Mentor based upon Mentor's qualifications, expertise
and  reputation.  Mentor  is a  nationally  recognized  valuation  firm  that is
continually  engaged in providing financial advisory services in connection with
mergers and acquisitions,  leveraged buyouts, business and securities valuations
for a variety of regulatory and planning purposes, recapitalizations,  financial
restructurings,  and  private  placements  of debt  and  equity  securities.  As
compensation to Mentor for its services in connection with the  Transaction,  we
agreed to pay Mentor an aggregate fee of $25,000 plus Mentor's related expenses.
No portion of Mentor's fee is contingent  upon the successful  completion of the
Transaction,  any other related  transaction,  or the conclusions reached in the
Mentor opinion.  No limitations were imposed by the Board on Mentor with respect
to the  investigations  made or  procedures  followed by them in  rendering  its
opinion.  Xtrana also agreed to  indemnify  Mentor and related  persons  against
certain  liabilities,  including  liabilities under federal securities laws that
arise out of the engagement of Mentor.

         On December  14, 2004,  Xtrana,  AIC Merger  Corporation,  a California
corporation and a wholly-owned  subsidiary of Xtrana, and Alpha Innotech entered
into the Merger Agreement pursuant to which


                                       30



Xtrana Sub will be merged  with and into  Alpha  Innotech,  with Alpha  Innotech
continuing  after the Merger as the  surviving  corporation  and a  wholly-owned
subsidiary of Xtrana. The common  shareholders of Xtrana and Alpha Innotech will
own 17 percent and 83 percent, respectively, of the outstanding shares of Xtrana
(excluding  options and warrants) upon the  consummation  of the Merger.  Xtrana
will also  deliver  cash of  approximately  $2.2  million at the  closing of the
Merger.  In addition,  pursuant to the Merger  Agreement  Xtrana has  previously
advanced Alpha Innotech $500,000  pursuant to the terms of a secured  promissory
note.  The Merger  Agreement has been approved by the Board of Directors of both
Xtrana and Alpha Innotech.  We further understand that on April 6, 2005, Xtrana,
Xtrana  Sub,  and  Alpha  Innotech,  entered  into an  amendment  to the  Merger
Agreement. The amendment to the Merger Agreement was entered into to clarify the
parties with respect to certain  provisions of the Merger  Agreement and to make
certain  amendments to the closing  conditions for the Merger and the payment of
certain deferred compensation owed to Alpha Innotech officers.

         The  material  terms of the  transactions  contemplated  by the  Merger
provide,  among others, that pursuant to the Merger Agreement,  at the effective
time of the Merger,  each share of Alpha Innotech common stock will be converted
into  approximately  0.1142909  shares of Xtrana  common stock and each share of
Alpha Innotech  Series A Preferred  Stock and Series A-1 Preferred Stock will be
converted into  approximately  0.3033634  shares of Xtrana common stock, in each
case as such ratios may be adjusted as provided in the Merger  Agreement.  These
exchange ratios take into account a contemplated 1-for-10 reverse stock split of
Xtrana's common stock to be effected  immediately  prior to the Merger,  and the
Merger Agreement  provides that in no event shall the number of shares of Xtrana
common stock issued to the Alpha Innotech  shareholders exceed 83 percent of the
outstanding  shares of Xtrana common stock immediately  following the closing of
the Merger. All options to purchase shares of common stock of Alpha Innotech and
warrants to purchase shares of common stock or preferred stock of Alpha Innotech
outstanding  at the effective  time of the Merger will be assumed or replaced by
options,  or  warrants  to  purchase  Xtrana  common  stock,  with  proportional
adjustment to the number of underlying  shares and exercise price of each option
and warrant  based upon the  relevant  exchange  ratios  identified  above.  All
existing common  stockholders of the Company prior to the Merger are referred to
herein as the "Public  Stockholders."  The transactions  described above and all
related transactions are referred to collectively herein as the "Transaction."

         Mentor  delivered its written  opinion,  dated as of April 21, 2005, to
the Board to the  effect  that,  as of that  date,  based on and  subject to the
assumptions,  limitations and qualifications as set forth in its written opinion
(which is attached to this Proxy Statement as APPENDIX B and incorporated hereby
by this reference) and in the discussion that follows,  the Transaction pursuant
to the Merger Agreement was fair to the Public  Shareholders and to the Company,
from a financial point of view.

         THE FULL TEXT OF MENTOR'S  WRITTEN OPINION DATED APRIL 21, 2005,  WHICH
SETS FORTH THE ASSUMPTIONS  MADE,  MATTERS  CONSIDERED AND LIMITATIONS ON REVIEW
UNDERTAKEN,   IS  ATTACHED  TO  THIS  PROXY  STATEMENT  AS  APPENDIX  B  AND  IS
INCORPORATED  IN THIS  PROXY  STATEMENT  BY  REFERENCE.  YOU ARE  URGED  TO READ
MENTOR'S OPINION IN ITS ENTIRETY.

         MENTOR'S OPINION IS DIRECTED TO THE BOARD AND ADDRESSES THE FAIRNESS OF
THE  TRANSACTION TO THE PUBLIC  STOCKHOLDERS OF XTRANA AND TO THE COMPANY FROM A
FINANCIAL  POINT OF VIEW.  MENTOR'S  OPINION  DOES NOT  ADDRESS  THE  UNDERLYING
DECISION  OF  XTRANA  TO ENGAGE IN THE  TRANSACTION  AND DOES NOT  CONSTITUTE  A
RECOMMENDATION TO THE BOARD OF DIRECTORS,  OR TO ANY STOCKHOLDER OF XTRANA AS TO
HOW SUCH  STOCKHOLDER  SHOULD  VOTE OR AS TO ANY OTHER  ACTON  SUCH  STOCKHOLDER
SHOULD  TAKE IN  CONNECTION  WITH THE  TRANSACTION.  THE  SUMMARY OF THE WRITTEN
OPINION OF MENTOR SET FORTH IN 


                                       31



THIS PROXY  STATEMENT IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT
OF THE OPINION.

         Mentor's  opinion  is  addressed  to  the  Board  of  Directors  in its
evaluation  of the  Transaction  and,  except for the inclusion of the option in
this Proxy  Statement,  should not be used,  quoted or  distributed by any other
person without the prior written consent of Mentor in each instance.

         The  opinion of Mentor and its  presentation  to the Board  constituted
only one of a  number  of  factors  taken  into  consideration  by the  Board of
Directors in making their respective determinations to approve the Transaction.

     SUMMARY OF  FINANCIAL  ANALYSES  PERFORMED  BY MENTOR  WITH  RESPECT TO THE
     TRANSACTION

         Generally, the presentation of a fairness opinion is a complex analytic
process.  This process involves various  determinations and judgments concerning
the  financial and operating  characteristics  of a business and other  factors,
including,  but not  limited to the most  appropriate  and  relevant  methods of
financial  analyses  and the  application  of those  methods  to the  particular
circumstances that could affect the acquisition,  public trading or other values
of the companies or transactions  being analyzed.  Therefore,  such opinions are
not  readily  susceptible  to  partial  or  summary  description.  No company or
transaction  used in the analyses as a comparison is identical to Xtrana,  Alpha
Innotech or the  Transaction,  nor is an  evaluation  of the results of analyses
entirely  mathematical.  The estimates  contained in analyses resulting from any
particular  analysis  are  not  necessarily   indicative  of  actual  values  or
predictive of future results or values,  which may be significantly more or less
favorable than those suggested by the analyses.  In addition,  analyses relating
to the value of the business or securities do not purport to be appraisals or to
reflect the prices at which businesses,  companies or securities actually may be
sold.  Accordingly,  such  analyses  and  estimates  are  inherently  subject to
substantial  uncertainty.  In arriving at its opinion,  Mentor made  qualitative
judgments  as to the  significance  and  relevance  of each  analysis and factor
considered  by it.  Accordingly,  Mentor  believes  that  its  analyses  must be
considered  as a whole and that  selecting  portions  of its  analyses,  without
considering  all analyses and factors,  could create an  incomplete  view of the
processes underlying the analyses and its opinion.

         In arriving at its opinion with respect to the Transaction, Mentor made
its  determination  as to the fairness,  from a financial  point of view, of the
Transaction  to the Public  Stockholders  of Xtrana on the basis of a variety of
financial and comparative  analyses,  including those described below.  Mentor's
opinion  does not address the  fairness of the  Transaction  to creditors or any
security  holders of  Xtrana,  either  debt or equity,  other than to the Public
Stockholders of Xtrana in the Transaction.  The summary of analyses performed by
Mentor, as set forth below, does not purport to be a complete description of the
analyses and procedures  underlying Mentor's opinion,  the judgments made or the
conclusions  reached by Mentor or a complete  description  of its  presentation.
Mentor  believes,  and has so advised the Board of Directors,  that its analyses
must be considered as a whole and that selecting portions of its analyses and of
the factors  considered  by it,  without  considering  all factors and analyses,
could result in an incomplete and inaccurate view of the process  underlying its
analyses and opinion.

         In connection with the preparation of its opinion dated as of April 21,
2005, among other things, Mentor did the following:

         1.       met with certain  members of the senior  management  of Xtrana
                  and  Alpha  Innotech  to  discuss  the  operations,  financial
                  condition,  future  prospects  and  projected  operations  and
                  performance of the Company and Alpha Innotech;

         2.       visited  certain  facilities  and  business  offices  of Alpha
                  Innotech in San Leandro, California;


                                       32



         3.       reviewed audited  financial  statements for Alpha Innotech for
                  the fiscal years ended December 31, 2000, 2001, 2002, 2003 and
                  2004;

         4.       reviewed  the  unaudited  financial  information,   internally
                  prepared  by  management  of Alpha  Innotech,  relating to the
                  operations  of Alpha  Innotech,  including:  (i) the unaudited
                  consolidated   balance   sheet  of  Alpha   Innotech  and  its
                  subsidiaries, as of March 31, 2004 and March 31, 2005, and the
                  related consolidated  statements of operations,  stockholders'
                  equity and cash  flows for the three  months  ended  March 31,
                  2004 and March 31, 2005, which Alpha Innotech's management has
                  represented  and  warranted  as  the  most  current  financial
                  statements available;

         5.       reviewed  certain  financial  projections  provided  by  Alpha
                  Innotech's  management  relating  to  Alpha  Innotech  for the
                  fiscal years ending  December 31, 2005,  2006,  2007, 2008 and
                  2009;

         6.       reviewed:  (i) Xtrana's Form 10-KSB for the fiscal years ended
                  December  31,  2002,  2003 and  2004,  including  the  audited
                  consolidated balance sheet of Xtrana and its subsidiaries,  as
                  of  December  31,  2002,   2003  and  2004,  and  the  related
                  consolidated  statements of operations,  stockholders'  equity
                  and cash flows for the fiscal  years ended  December 31, 2002,
                  2003 and  2004;  and (ii)  certain  other  publicly  available
                  business and financial information related to Xtrana, which we
                  deemed to be relevant;

         7.       reviewed  the  unaudited  financial  information,   internally
                  prepared by management of Xtrana,  relating to the  operations
                  of Xtrana,  including:  (i) the unaudited consolidated balance
                  sheet of Xtrana and its subsidiaries, as of March 31, 2004 and
                  March 31, 2005,  and the related  consolidated  statements  of
                  operations,  stockholders' equity and cash flows for the three
                  months  ended  March 31,  2004 and March 31,  2005,  which the
                  Company's management has represented and warranted as the most
                  current financial statements available;

         8.       reviewed  the  following  documents  and  agreements:  (i) the
                  Merger  Agreement among Xtrana,  Xtrana Sub and Alpha Innotech
                  dated  December 14, 2004;  and (ii) the Amendment No. 1 to the
                  Merger  Agreement among Xtrana,  Xtrana Sub and Alpha Innotech
                  dated April 6, 2005;

         9.       reviewed certain other publicly  available  financial data for
                  certain companies that we deem comparable to Xtrana; and

         10.      conducted  such other  studies,  analyses and  inquiries as we
                  have deemed appropriate for purposes of this opinion.

         In  performing  its  analyses,  Mentor  relied  upon the  accuracy  and
completeness of the foregoing information, and did not assume any responsibility
for and did not conduct any  independent  verification of such  information.  In
addition,  it did not conduct any  independent  valuation  or  appraisal  of the
assets or  liabilities  of Alpha  Innotech or Xtrana or any of their  respective
subsidiaries,  or  concerning  the  solvency  or value  of any of the  foregoing
entities,  and was not  furnished  with any such  valuation or  appraisal.  With
respect  to  financial  forecasts  and  projections,  Mentor  assumed  that such
forecasts and projections were reasonably  prepared on bases reflecting the best
currently  available estimates and judgments of the management of Alpha Innotech
as to the future  financial  performance of Alpha Innotech,  and it also assumed
that such forecasts and  projections  will be realized in the amounts and at the
times contemplated  thereby.  Mentor assumed no responsibility for and expressed
no view as to any such  forecasts and  projections  or the  assumptions on which
they were based.

         In rendering this opinion,  Mentor assumed,  with Xtrana's  permission,
that the proposed  Transaction  would be consummated  substantially on the terms
discussed in the Merger  Agreement,  without any waiver of any material terms or
conditions by any party thereto. Without limiting the


                                       33



generality of the  foregoing,  for the purpose of this opinion,  Mentor  assumed
that  Xtrana  and Alpha  Innotech  are not a party to any  pending  transaction,
including external financings,  recapitalizations,  asset sales, acquisitions or
merger  discussions,  other than the  Transaction  or in the ordinary  course of
business.  Mentor also assumed that all the necessary  regulatory  approvals and
consents required for the Transaction will be obtained in a manner that will not
change the consideration to be received by Xtrana.

         Pursuant to the conditions,  scope of its  engagement,  and limitations
and  understandings  described in the  foregoing  paragraphs,  Mentor's  opinion
addresses the fairness of the Transaction  from a financial point of view to the
pre-Transaction common stockholders of Xtrana. Mentor's opinion does not address
the fairness of the  Transaction  to  creditors  or any security  holders of the
Company,   either  debt  or  equity,  other  than  the  pre-Transaction   common
stockholders of Xtrana, and Mentor expressly disclaims any obligation to do so.

         The Mentor opinion does not address the underlying business decision of
the Xtrana to engage in the Transaction and does not constitute a recommendation
to the Board of Directors,  or to any  stockholder  of the Xtrana as to how such
shareholder  should vote or as to any other action such stockholder  should take
in  connection  with the  Transaction.  Mentor did not, and was not requested by
Xtrana or any other  person to,  solicit  third party  proposals or evaluate any
specific third party proposals in acquiring all or any part of Xtrana or to make
any recommendations as to the form or amount of consideration in connection with
the Transaction.  Further,  Mentor did not participate in the negotiations  with
respect to the Transaction or advise Xtrana with respect to alternatives to it.

         Mentor was not asked to opine and does not  express  any opinion as to:
(i) the tax consequences of the Transaction,  including, but not limited to, tax
or legal  consequences  to Xtrana or the  stockholders  of Xtrana in the  United
States or in any  other  jurisdiction;  (ii) the  realizable  value of  Xtrana's
common stock price or the prices at which Xtrana's common stock may trade in the
future  following  the  Transaction;  or (iii) the fairness of any aspect of the
Transaction not expressly  addressed in its fairness opinion.  This opinion does
not give  consideration to the tax effect of the proposed  Transaction on Xtrana
or the stockholders of Xtrana in the United States or in any other jurisdiction.

         In  preparing  this  opinion,  Mentor  assumed and relied on the truth,
accuracy and completeness of all information  supplied or otherwise,  including,
without limitation,  any financial information,  forecasts or projections,  made
available to Mentor,  discussed  with or reviewed by or for Mentor,  or publicly
available. In addition, where appropriate, Mentor relied upon publicly available
information  that  Mentor  believed  to be  reliable,  accurate,  and  complete;
however,  Mentor cannot guarantee the reliability,  accuracy, or completeness of
any such publicly available information. Mentor did not independently verify the
accuracy and completeness of the information  provided to it and has not assumed
and expressly  disclaims any  responsibility  for  independently  verifying such
information or undertaken any independent  evaluation or appraisal of any of the
assets or  liabilities  of Xtrana and Alpha  Innotech or was furnished  with any
such evaluation or appraisal.  In addition,  Mentor did not conduct, and has not
assumed any obligation to conduct,  any physical inspection of the properties or
facilities of Xtrana and Alpha Innotech. While Mentor considered the liquidation
value of Xtrana in its  analysis,  Mentor  expresses  no opinion  regarding  the
liquidation  value  of  any  entity.  Without  limiting  the  generality  of the
foregoing,  Mentor has  undertaken  no  independent  analysis  of any pending or
threatened   litigation,   possible   unasserted   claims  or  other  contingent
liabilities,  to which  Xtrana  and Alpha  Innotech  or any of their  respective
affiliates  is a party or may be subject  and,  at Xtrana's  direction  and with
Xtrana's consent, Mentor's opinion makes no assumption concerning, and therefore
does not  consider,  the  possible  assertions  of claims,  outcomes  or damages
arising out of any such matters.

         Mentor assumed that the financial forecast information  furnished to or
discussed  with  Mentor,  by  Xtrana  and  Alpha  Innotech,  was  prepared  in a
reasonable  manner and  reflected  the best  currently  available  estimates and
judgment of the Xtrana's management and Alpha Innotech's management as to


                                       34



the expected future financial performance of Xtrana and Alpha Innotech, and that
there had been no material change in the assets,  financial condition,  business
or  prospects  of Xtrana and Alpha  Innotech  since the date of the most  recent
financial  statements made available to Mentor.  This opinion  expresses no view
with respect to how the projections were obtained,  the  reasonableness  of such
projections,  or the assumptions on which they were based.  Further,  Mentor has
relied upon the  representations of management of Xtrana and Alpha Innotech that
management  and  Alpha  Innotech's  management  is not  aware  of any  facts  or
circumstances  that  would make any such  forecasts  inaccurate  or  misleading.
Mentor's opinion is necessarily based upon market, economic and other conditions
as they exist and can be evaluated, and on the information made available to it,
as of the date of this opinion.  Any subsequent  change in such conditions could
materially  affect  the  assumptions  used in the  opinion  and would  require a
reevaluation of such opinion.  Although subsequent  developments may affect this
opinion,  Mentor has assumed no  obligation  to update,  revise or reaffirm such
opinion, and Mentor expressly disclaims any obligation to do so.

     ANALYSES

         Mentor  used  several  methodologies  to assess  the  fairness,  from a
financial  point of view, of to the Public  Stockholders  in connection with the
Transaction.  These  methodologies  provided  an  estimate  as to the  aggregate
enterprise value of Alpha Innotech and Xtrana. The following is a summary of the
material  financial  analyses  used by Mentor in connection  with  providing its
opinion. This summary is qualified in its entirety by reference to the full text
of such opinion,  which is attached as APPENDIX B to this Proxy  Statement.  You
are  urged to read the full  text of the  Mentor  opinion  carefully  and in its
entirety.

         Mentor used the following valuation methodologies in order to determine
the  estimated  market  value of Alpha  Innotech:  (i) a public  company  market
multiple approach;  (ii) an income approach;  and (iii) a comparable transaction
approach.  The analyses  required  studies of the overall  market,  economic and
industry  conditions  in  which  Alpha  Innotech  operates  and  the  historical
operating results of Alpha Innotech.

         PUBLIC  COMPANY  MARKET  MULTIPLE  APPROACH.  Mentor  reviewed  certain
financial   information   of   publicly   traded   comparable   companies   (the
"Comparables"),  selected solely by Mentor,  that provide similar  categories of
products  as Alpha  Innotech  to a  similar  customer  base,  specifically  life
sciences  tools,  such as  instruments,  reagents and software,  to research and
development departments of pharmaceutical  companies,  biotechnology  companies,
and other life sciences  research and  development  companies.  The  Comparables
included  Caliper Life Sciences,  Inc.,  Cepheid,  Ciphergen  Biosystems,  Inc.,
Illumina,  Inc., Luminex Corporation,  Molecular Devices  Corporation,  Nanogen,
Inc.,  Sequenom,  Inc.,  and Third Wave  Technologies,  Inc.  Mentor  calculated
certain  financial  ratios,  including the multiples  of: (i)  Enterprise  Value
("EV") to Latest Twelve Months ("LTM") revenues; and (ii) EV to Next Fiscal Year
("NFY") projected  revenues and Equity Value to NFY projected net income, of the
Comparables based on the most recent publicly available information. "Enterprise
Value" is defined  as the market  value of a  company's  issued and  outstanding
common stock and common stock  equivalents  (collectively,  "Equity Value") plus
the market value of issued and  outstanding  indebtedness,  preferred  stock and
minority interests minus cash and cash equivalents.

         No company  utilized in the public company market multiple  approach is
identical  to  Alpha  Innotech.  In  selecting  and  evaluating  the  comparable
companies, Mentor made certain judgments and assumptions with regard to industry
performance,  general business,  economic, market and financial conditions,  and
other  matters.  Specifically,  Mentor assumed in its analysis that the industry
performance,  general business,  economic, market and financial conditions would
remain  generally  similar on an ongoing basis as at of the date of its opinion.
Mathematical  analysis,  such as determining  the average or median,  of certain
financial  ratios of the  comparable  companies  is not in  itself a  meaningful
method of using comparable company data.


                                       35



         The analysis showed that the multiples of EV to LTM revenues  exhibited
by the  Comparables  ranged from 0.9x to 6.5x with a median multiple of 2.4x. In
addition, the analysis showed that the multiples of EV to NFY projected revenues
exhibited by the Comparables  ranged from 0.9x to 3.4x with a median multiple of
1.4x, and the multiples of Equity Value to NFY projected net income exhibited by
the  Comparables  ranged  from 16.9x to 34.8x with a median  multiple  of 24.5x,
respectively.  After  reviewing  these trading  multiples of the Comparables and
various  other  factors  including,   but  not  limited  to,  size,  growth  and
profitability,  analyst coverage and stock liquidity,  Mentor selected EV to LTM
revenue  multiples  in the range of 1.3x to 1.8x;  EV to NFY  projected  revenue
multiples in the range of 1.0x to 1.1x;  and Equity Value to NFY  projected  net
income  multiples  in the  range of 6.6x to  7.5x.  Mentor  selected  a range of
multiples for Alpha Innotech that were below median  multiple of the Comparables
in order to reflect Alpha  Innotech's  greater  company-specific  risks compared
with that of the  Comparables.  The risks relate to, among other factors,  Alpha
Innotech's smaller size, lower growth rate, more limited distribution  channels,
lower  profitability,  and less diversification of products and markets relative
to the Comparables.

         Mentor derived an indication of the Enterprise  Value of Alpha Innotech
by  applying  selected  revenue  and net income  multiples  to Alpha  Innotech's
representative  levels of revenue and net income for the LTM period  ended March
31, 2005 and certain  projected  results of Alpha  Innotech  for the fiscal year
ending December 31, 2005. Based on the above,  the resulting  indications of the
Enterprise  Value of Alpha Innotech ranged from  approximately  $14.3 million to
$32.0 million.

         INCOME APPROACH. Mentor utilized certain financial projections prepared
by the  management  of Alpha  Innotech for the fiscal years ending  December 31,
2005,  2006,  2007,  2008 and 2009 to perform a discounted cash flow analysis of
Alpha Innotech.  To determine Alpha Innotech's Enterprise Value, Mentor used the
projected  unlevered cash flows of Alpha Innotech from December 31, 2005,  2006,
2007, 2008, and 2009, and applied assumed  risk-adjusted  discount rates ranging
from 34  percent to 36 percent  and  long-term  growth  rates  ranging  from 4.9
percent to 6.9 percent.  Mentor used the Capital Asset Pricing Model ("CAPM") to
calculate a  risk-adjusted  discount rate for Alpha Innotech of 35 percent.  The
CAPM  provides a  discount  rate that is the sum of the rate of return on a risk
free investment,  rate of return on a risky equity  investment and an additional
rate of return required to compensate a hypothetical investor for specific risks
pertaining  to  the  subject   company.   The  selected  range  of  the  assumed
risk-adjusted  discount  rates is plus or minus one percent of the discount rate
resulting from the application of CAPM for Alpha Innotech. Based on management's
estimates and this analysis the resulting indications of the Enterprise Value of
Alpha Innotech ranged from approximately $17.2 million to $19.5 million.

         COMPARABLE TRANSACTION APPROACH. This analysis involves a review of the
valuations  reflected  in  acquisition  transactions  when  there is a change of
control,  whether  through merger,  stock purchase or asset purchase,  involving
companies  operating in industries and with a business strategy similar to Alpha
Innotech's  operations and strategies.  The comparable  transaction approach may
yield the widest value range, due to the varying importance of an acquisition to
a buyer,  differences in the transaction process and the qualitative differences
among target or acquired  companies.  Furthermore,  information is typically not
disclosed for transactions  involving a private seller, even when the buyer is a
public  company,  unless  the  acquisition  is deemed to be  significant  to the
acquirer.  As a result,  the pool of transactions  reviewed in connection with a
comparable  transaction analysis is limited to transactions involving two public
companies or acquisitions by public companies of large private companies.

         Mentor identified and selected thirteen transactions (collectively, the
"Transaction Comparables") during the last five years involving target companies
in the life  sciences  tools  industry  that provide  instruments,  reagents and
software to companies  engaged in the life  sciences  research  and  development
industry  over the last five  years.  These  transactions,  along  with the date
completed in parentheses,  were the acquisition of: (i) Atto Bioscience, Inc. by
Becton, Dickinson and Company (7/1/2004); (ii) Axon


                                       36



Instruments Ltd. by Molecular  Devices Corp  (7/1/2004);  (iii) Molecular Probes
Inc by Invitrogen Corp. (8/20/2003); (iv) Zymark Corp. by Caliper Life Sciences,
Inc. (7/15/2003); (v) PanVera LLC by Invitrogen Corp. (3/31/2003);  (vi) Genomic
Instrumentation Services, Inc. (d/b/a GeneMachines) by Harvard Bioscience,  Inc.
/ Genomic  Solutions Inc.  (3/12/2003);  (vii) Genomic Solutions Inc. by Harvard
Bioscience, Inc. (10/25/2002); (viii) Packard Bioscience Co. by PerkinElmer Inc.
(11/13/2001);  (ix) Aurora  Biosciences  Corp.  by Vertex  Pharmaceuticals  Inc.
(7/18/2001);  (x) PanVera LLC by Aurora Biosciences Corp. (3/1/2001);  (xi) Life
Technologies Inc. by Invitrogen Corp. (9/14/2000);  (xii) NEN Life Sciences Inc.
by PerkinElmer Inc.  (7/31/2000);  and (xiii) Thermo BioAnalysis Corp. by Thermo
Electron Corp. (4/20/2000).

         While some  attributes of the acquired  companies were similar to Alpha
Innotech,  none of the  transactions  identified  were identical to the proposed
merger and many may have  occurred at times when the  economic  conditions  were
different than at the time of Mentor's analysis.

         Based on the  publicly  available  information  with  respect  to these
transactions,  Mentor  calculated  and compared  multiples for each  transaction
based on LTM  revenue.  The  analysis  showed  that the  multiples  of EV to LTM
revenues exhibited by the Transaction  Comparables ranged from 1.2x to 8.4x with
a median  multiple of 3.5x.  After  reviewing  these  trading  multiples  of the
Transaction Comparables and various other factors including, but not limited to,
size,  growth  and  profitability,   completion  date  of  the  transaction  and
description of the transaction,  Mentor selected EV to LTM revenue  multiples in
the  range of 1.1x to 1.5x.  Mentor  selected  a range of  multiples  for  Alpha
Innotech that were below median multiple of the Transaction Comparables in order
to reflect Alpha Innotech's greater company-specific risks compared with that of
the  Transaction  Comparables.  The risks relate to, among other factors,  Alpha
Innotech's   smaller   size,   more   limited   distribution   channels,   lower
profitability,  and less diversification of products and markets relative to the
Transaction Comparables.

         Mentor derived an indication of the Enterprise  Value of Alpha Innotech
by applying  selected revenue  multiples to the Alpha Innotech's  representative
levels of revenue  for the LTM ended  March 31,  2005.  Based on the above,  the
resulting  indications  of the Enterprise  Value of Alpha  Innotech  ranged from
approximately $12.1 million to $16.5 million.

         The   aforementioned   Public  Company  Market  Multiple,   Income  and
Comparable  Transaction  Approaches  provided  Mentor with an  indication of the
Enterprise Value of Alpha Innotech that ranged from approximately  $18.0 million
to $22.1 million.

         Mentor used the following  valuation  methodology in order to determine
the  estimated  market  value of Xtrana:  (i) the asset  approach.  The analyses
required  studies of the overall  market,  economic and industry  conditions  in
which Xtrana operates and the historical operating results of Xtrana. Mentor did
not rely on the  liquidation  value of Xtrana  in its  analysis  because  Mentor
valued Xtrana as a going  concern and Mentor  ascertained  that the  liquidation
value of Xtrana would have resulted in the Xtrana common stockholders  receiving
less than what they could  receive if the Company  was  valued,  pursuant to the
asset approach described herein, as a going concern.

         ASSET  APPROACH.  Mentor  utilized  the balance  sheet  prepared by the
Xtrana's  management as of March 31, 2005 and, based on discussions  with Xtrana
management, adjusted the individual asset and liability values from this balance
sheet to market value. The only item on Xtrana's balance sheet at March 31, 2005
that was  adjusted was the  carrying or book value of the note  receivable  from
Alpha Innotech, which was increased in value by $500,000 compared to its balance
sheet  or book  value  of $0.  Based  on  discussions  with  Xtrana  management,
management's  estimates  and this  analysis  the  resulting  indications  of the
Enterprise  Value of Xtrana  ranged  from  approximately  $2.3  million  to $2.8
million.


                                       37



     CONCLUSION

         In rendering this opinion, Mentor assumed that the proposed Transaction
would  be  consummated  substantially  on the  terms  discussed  in  the  Merger
Agreement,  without any waiver of any material  terms or conditions by any party
thereto.  Without  limiting the generality of the foregoing,  for the purpose of
this opinion,  Mentor has assumed that Xtrana and Alpha Innotech are not a party
to any pending transaction,  including external  financings,  recapitalizations,
asset sales,  acquisitions or merger discussions,  other than the Transaction or
in the  ordinary  course  of  business.  Mentor  has also  assumed  that all the
necessary regulatory approvals and consents required for the Transaction will be
obtained  in a manner that will not change the  consideration  to be received by
the Company.

         In connection with its review,  Mentor considered financial projections
for Alpha Innotech for the fiscal years ending  December 31, 2005,  2006,  2007,
2008 and 2009.  These financial  projections  were prepared by the management of
Alpha Innotech under market conditions as they existed as of approximately April
15, 2005 and the  management of Alpha Innotech does not intend to provide Mentor
with any updated or revised projections in connection with the Transaction.  The
projections do not take into account any circumstances or events occurring after
the date they were prepared. In addition,  factors such as industry performance,
general business, economic, regulatory, market and financial conditions, as well
as changes to the  business,  financial  condition or results of  operations  of
Alpha Innotech,  may cause the  projections or the underlying  assumptions to be
inaccurate.

         In its  analysis,  Mentor made  numerous  assumptions  with  respect to
Xtrana and Alpha Innotech,  the  Transaction,  industry  performance,  economic,
market and financial conditions and other matters,  many of which are beyond the
control of the respective entities. The estimates contained in such analyses are
not  necessarily  indicative of actual values or predictive of future results or
values, which may be more or less favorable than suggested by such analyses.

         In arriving at its fairness  opinion,  Mentor reviewed key economic and
market  indicators,  including,  but not  limited to,  growth in gross  domestic
product,   inflation   rates,   interest  rates,   consumer   spending   levels,
manufacturing  productivity levels,  unemployment rates and general stock market
performance.  Mentor's  opinion  is  based on the  market,  economic  and  other
conditions as they existed as of April 21, 2005 and on the  projected  financial
information provided to Mentor as of such date.

         The Mentor Group arrived at its  conclusion by evaluating and comparing
the Enterprise  Value of Xtrana as determined under the "Asset Approach" of $2.3
million to $2.8  million to the  Enterprise  Value of the 17%  interest in Alpha
Innotech that is to be attributable  to Xtrana's  stockholders at the closing of
the transaction  pursuant to the terms of the Merger Agreement.  The transaction
with Alpha  Innotech  valued  Xtrana's  17% interest in the  post-merger  entity
(based on The Mentor Group's  concluded  Enterprise Value range of $18.0 million
to $22.1 million for Alpha Innotech) between approximately $3.1 million and $3.8
million,  reflecting  a  premium  over The  Mentor  Group's  range  of  Xtrana's
Enterprise Values.

         The summary  set forth  above  describes  the  material  points of more
detailed analyses performed by Mentor in arriving at its fairness opinion.


                                       38



                       DESCRIPTION OF XTRANA CAPITAL STOCK

         COMMON STOCK.  We are authorized to issue  50,000,000  shares of common
stock,  par value  $0.01 per  share.  As of June 30,  2005,  we had  issued  and
outstanding  16,533,269  shares of common stock. The holders of common stock are
entitled  to one vote for each share held of record on all  matters on which the
holders of common  stock are  entitled to vote.  The holders of common stock are
entitled to receive  dividends in proportion to their  ownership when, as and if
declared by the board of Directors out of legally  available funds. In the event
of our  liquidation,  dissolution or winding up, the holders of common stock are
entitled,  subject to the rights of holders of preferred  stock issued by us, if
any, to share  proportionally in all assets remaining available for distribution
to them after payment of liabilities  and after provision is made for each class
of stock, if any, having preference over the common stock.

         The holders of common stock have no preemptive  or  conversion  rights,
and they are not liable for further  calls or  assessments  by us.  There are no
redemption  or sinking  fund  provisions  applicable  to the common  stock.  The
outstanding  shares of common stock are,  and the common  stock  issuable in the
Merger will be, when issued, fully paid and nonassessable.

         OPTIONS.  As of June 30, 2005,  we had issued and  outstanding  options
covering an aggregate of 1,040,634  shares of our common  stock.  These  options
expire at various dates from December 2005 through April 2012 and have exercises
prices ranging from $0.23 to $1.88 per share. The term of the options may not be
extended  under the  terms of the  applicable  option  plans.  The  Compensation
Committee  of our Board of  Directors  has  adopted  resolutions  providing  for
amendment of all  outstanding  options,  effective as of and contingent upon the
occurrence  of the  closing of the Merger,  to provide  that  regardless  of the
termination  of  the  optionee's  service,  the  options  shall  continue  to be
exercisable  by the  optionee  for a period of time  equal to the lesser of five
years from the closing date of the Merger and the remaining term of such option.

         WARRANTS.  As of June 30, 2005, we had issued and outstanding  warrants
for the purchase of an aggregate of 674,755  shares of our common  stock.  These
warrants  expire at various  dates from  August  2005  through May 2010 and have
exercises prices ranging from $0.01 to $2.50 per share. The term of each warrant
may be extended by mutual agreement of Xtrana and the warrant holder.

                    XTRANA BUSINESS AND FINANCIAL INFORMATION

         Business and financial information about us and information  concerning
the Board of Directors,  management and significant stockholders may be found in
our Annual  Report on Form 10-KSB for the year ended  December  31, 2004 and our
Quarterly  Report on Form 10-QSB for the quarter ended March 31, 2005, which are
being mailed to you with this Proxy Statement,  and are  incorporated  herein by
reference.  Any future filings we make with the SEC under Sections 13(a), 13(c),
14 or 15(d) of the Securities  Exchange Act of 1934, as amended,  until the date
of the Annual Meeting of Stockholders shall be deemed to be incorporated  herein
by reference.

         We file annual,  quarterly and special  reports,  proxy  statements and
other information with the SEC. Our SEC filings are available to the public over
the Internet at the SEC's web site at http://www.sec.gov.  You may also read and
copy any document we file at the SEC's  public  reference  rooms in  Washington,
D.C.,  New  York,  New  York  and  Chicago,  Illinois.  Please  call  the SEC at
1-800-SEC-0330  for additional  information on the public  reference  rooms. Our
common  stock  currently  trades  on the  OTCBB.  Our  periodic  reports,  proxy
statements  and other  information  can be inspected at the offices of Nasdaq at
1735 K Street, NW, Washington, DC, 20006.


                                       39



                ALPHA INNOTECH BUSINESS AND FINANCIAL INFORMATION

OVERVIEW

         Alpha Innotech  develops,  manufactures and markets digital imaging and
detection  systems for the life  science  research and drug  discovery  markets.
Alpha  Innotech's goal is to combine  instruments,  reagents and  bioinformatics
software   to   offer   integrated   modular   technology   platforms   for  the
electrophoresis,  functional  genomics,  proteomics  and cell analysis  markets.
Alpha  Innotech  Corporation,  a privately  held company,  was  incorporated  in
California in 1992.  Alpha  Innotech  maintains  its  corporate  offices at 2401
Merced Street,  San Leandro,  California 94577 and its telephone number is (510)
483-9620.    Alpha    Innotech's    corporate    web   site   is    located   at
www.alphainnotech.com.

MARKET OPPORTUNITY

         Alpha  Innotech  believes  that   international   trade  in  scientific
instruments in general, and the research and development budgets of customers in
certain  pharmaceutical  and biotechnology  companies in particular,  have risen
since  2002 and will  continue  to rise this  year.  Alpha  Innotech  intends to
capture  a share of this  rise  with its  product  mix  comprising  instruments,
software  and  reagents  for the gel  imaging,  microarray,  and array of arrays
markets.

         Alpha  Innotech  represents a small segment of a life science  research
tool market.  This market includes a wide range of technologies  such as various
types of instruments, reagents, consumables and software. Given the complexities
and focus of these tools for specific applications,  Alpha Innotech is not aware
of any objective and accurate third party reports on various life science market
segments  that can be used to determine  Alpha  Innotech's  market share in this
market.  While Alpha Innotech may not have an accurate third party  quantitative
measure of market size for its  specific  products,  Alpha  Innotech  management
estimates the target market for Alpha Innotech's  products is approximately $675
million with a projected growth rate of over 20% annually.

         Alpha  Innotech  believes the human genome  project,  genome studies of
other  organisms,  and large scale gene  expression  studies have identified and
will continue to identify many target genes.  Alpha  Innotech  believes there is
and will be an increasing  need for efficient tools and methods to further study
this  multitude of target genes.  Many genomic and some  proteomics  studies are
currently conducted using the microarray (slide) format. Alpha Innotech believes
multiplexed   arrays  or  "array  of  arrays"   (microtitre  well)  format  will
increasingly be adopted by the life science research and drug discovery  markets
for  proteomics  and cell analysis  studies.  The Alpha  Innotech  NovaRay array
reader  was  developed  for and  useful in both  microarray  and array of arrays
formats. 

TECHNOLOGY

         Alpha Innotech patent  portfolio  consists of three issued U.S. patents
and nine U.S. patent applications relating to its proprietary NovaRay(R) and Gel
Imaging technology. These patents expire in 2018, 2022 and 2024.

         Under  the  terms  of an  agreement  between  Digital  Optical  Imaging
Corporation  ("DigiOpt") and Alpha  Innotech,  Alpha Innotech  received  certain
exclusive  rights  to  make  and  sell  products  incorporating  the  inventions
disclosed in four of DigiOpt's United States patents. These patents describe the
use of  micro-optical-electrical-mechanical  components  such as  digital  micro
mirror devices for  controlling  both excitation and emission light in ways that
can improve the  performance of instruments  like the  NovaRay(R).  The licenses
remain in effect  until the last  underlying  patent or patent  application  has
expired or is abandoned.  The latest to expire patent  covered by this agreement
is scheduled to expire in 2021.  Alpha Innotech  committed to pay certain patent
prosecution  fees and  costs;  to date  these  costs  have been  minimal.  Alpha
Innotech  committed to pay DigiOpt  guaranteed minimum royalties of $40,000 over
the


                                       40



five-year period following the earlier of the first commercial sale of a product
incorporating  the technology,  or August 2006.  Alpha Innotech has not made any
royalty  payments to date.  DigiOpt may convert the exclusive  license rights to
non-exclusive  if Alpha Innotech does not make a first commercial sale by August
2006,  or  terminate  them  outright  if  Alpha  Innotech  does not make a first
commercial sale by February 2007.

         Alpha Innotech's  proprietary  instrument designs and software are also
protected under state and federal trade secret and copyright law.

PRODUCTS

         Alpha Innotech sells instruments, software and consumables used in life
science  research  laboratories for the study of nucleic acids (DNA and RNA) and
proteins  used to discover  and develop new  pharmaceuticals.  Alpha  Innotech's
products  address  two  segments  of  the  life  science  research  market:  Gel
Documentation and Microarray/Multiplexed Arrays.

         GEL  DOCUMENTATION.  Alpha  Innotech's  digital imaging systems for Gel
Documentation   are  used  to  detect,   archive,   and   analyze   fluorescent,
chemiluminescent  and  visible  signals  from  biological  samples  such as DNA,
proteins and bacterial colonies.  For example, in a common laboratory  procedure
called electrophoresis,  DNA molecules being analyzed are loaded into one end of
a "gel" and driven  toward the other end by an  electric  charge.  Molecules  of
different lengths and electrical  charges travel at different speeds through the
gel.  After  electrophoresis,  comparing the location of an unknown DNA molecule
with the  location  of known  standardized  DNA samples  such as  AlphaQuant(TM)
molecular ladders will provide important information to the researcher about the
size of unknown  sample DNA  molecules.  However,  the DNA  samples  are usually
invisible to the naked eye. To determine  their  locations,  a chemical  such as
ethidium bromide is added. The ethidium bromide binds to double stranded DNA and
"fluoresces",  that is, it absorbs light energy of one wavelength ("excitation")
and emits a different wavelength ("emission"). The researcher may then place the
sample  gel  into  any  of  Alpha   Innotech's  gel  imaging   instruments  (the
FluorChem(TM),  AlphaImager(R),  or AlphaDigiDoc(TM)) which bathes the sample in
excitation  light energy (in this example,  ultraviolet  radiation) and captures
the emission light energy with a scientific grade CCD camera. The researcher may
then use the analysis  features of  AlphaEase(R)  software for image capture and
analysis  to  determine  the  size  of the  unknown  DNA  sample  molecule.  The
researcher  may also  determine  the  quantity  of the  unknown  molecules  with
AlphaEase(TM) by comparing signal intensities of the unknown with the standard.

         Other Alpha Innotech  products in the Gel  Documentation  group include
software for analysis of "2-D"  protein gels (Alpha  GelFox(TM)  software for 2D
gel analysis),  reagents for use in chemiluminescent applications (ChemiGlow(TM)
chemiluminescent  substrate),  and  software  packages for  electronic  document
security (Alpha PART 11 Ease(TM) software for 21 C.F.R. Part 11 compliance).

         MICROARRAY/MULTIPLEXED  ARRAYS.  Alpha  Innotech's  other major product
group is for the  Microarray/Multiplexed  Arrays  market,  in which  researchers
analyze  slides or multi-well  microplates  "printed"  with genomic or proteomic
information,  and in some cases, live cell cultures.  The NovaRay(R)  includes a
patented combination of a broad source lamp with multiple filter sets to provide
researchers  maximum  flexibility  in their  choice of  fluorescent  labels when
analyzing   biochips  such  as  microarrays.   The  NovaRay(R)  reader  provides
additional  flexibility to the researcher by  accommodating  both the microplate
and the slide  formats.  The  researcher can then analyze the emissions from the
samples using  ArrayEase(R)  analysis  software.  The NovaRay(R) has been placed
with select  early-access  customers.  The  NovaRay(R)  is scheduled for broader
market launch in the fourth quarter of 2005.

         PRODUCTS UNDER DEVELOPMENT.  Alpha Innotech intends to introduce in the
third quarter of 2005 a laser-based  microarray reader targeted at customers who
use the single slide format. Alpha Innotech


                                       41



intends  also to offer  as  early as the  fourth  quarter  of 2005  other  array
analysis  software.  Alpha  Innotech is also  evaluating  printing  devices that
customers could use to create their own  microarrays  (both slide and microplate
format) in-house; no product release date has been set.

CUSTOMERS

         Alpha Innotech's  customers  include  pharmaceutical  and biotechnology
companies,  universities,  medical centers,  government  research institutes and
agencies worldwide.

DISTRIBUTION

         In the  United  Sates  Alpha  Innotech's  products  are sold  through a
network   of  direct   sales   representative   and   independent   manufactures
representatives.  Internationally,  Alpha Innotech's products are sold through a
network of 41 independent distributors in 43 countries worldwide. No distributor
accounts  for more  than 6.5% of Alpha  Innotech's  revenues.  Alpha  Innotech's
independent  distributors generally have exclusive distribution rights for their
respective  territories  and perform  sales,  marketing  and  technical  support
functions for their local customers.

FACILITIES

         Headquarters, manufacturing, and research and development are housed in
35,000 feet of leased space in San Leandro,  California.  This lease  expires in
December 2011.

RISK FACTORS

         You should carefully  consider the following risk factors and all other
information contained in this report. An investment in Alpha Innotech involves a
high degree of risk. If any of the following events or outcomes actually occurs,
our business, operating results, and financial condition would likely suffer.

ALPHA INNOTECH HAS A HISTORY OF OPERATING LOSSES AND MAY INCUR FUTURE LOSSES.

         Alpha Innotech has not been  profitable  since 1999.  Alpha  Innotech's
losses were $3.3  million,  $2.0 million and $2.6 million for fiscal years 2004,
2003 and 2002,  respectively  and Alpha Innotech had an  accumulated  deficit of
$14.2  million as of December  31, 2004 and $15.2  million as of March 31, 2005.
Alpha  Innotech's  losses  have  resulted  principally  from costs  incurred  in
research  and  development,   manufacturing   and  from  selling,   general  and
administrative costs associated with its operations.

         Alpha Innotech's ability to generate  significant revenues and maintain
profitability  is  dependent in large part on its ability to expand its customer
base, increase sales of its current products to existing  customers,  manage its
expense growth,  and enter into  additional  supply,  license and  collaborative
arrangements  as  well  as  on  its  ability  to  successfully  manufacture  and
commercialize products incorporating its technologies in new applications and in
new markets.

ADDITIONAL  FINANCING MAY BE REQUIRED FOR ALPHA  INNOTECH'S  FUTURE BUSINESS AND
OPERATIONS.

         Alpha Innotech will require  additional  capital  resources in order to
conduct its operations and develop its products.  While Alpha Innotech estimates
that upon completion of the Merger,  its capital resources will be sufficient to
fund its current level of operations for at least the next year based on current
business plans, it cannot guarantee that this will be the case. Additional funds
may be required to implement Alpha  Innotech's  business plan.  Alpha Innotech's
management may not be successful in raising such additional capital on favorable
terms or at all.


                                       42



ALPHA INNOTECH'S  BUSINESS  DEPENDS ON RESEARCH AND DEVELOPMENT  SPENDING LEVELS
FOR  PHARMACEUTICAL  AND  BIOTECHNOLOGY  COMPANIES AND ACADEMIC AND GOVERNMENTAL
RESEARCH INSTITUTIONS.

         Alpha Innotech expects that its revenues in the foreseeable future will
be derived primarily from products and services  provided to pharmaceutical  and
biotechnology   companies  and  academic,   governmental   and  other   research
institutions. Alpha Innotech's success will depend upon their demand for and use
of its products and services.  Alpha Innotech's  operating results may fluctuate
substantially   due  to  reductions  and  delays  in  research  and  development
expenditures by these customers. For example, reductions in capital expenditures
by these  customers  may result in lower than  expected  instrumentation  sales.
These  reductions  and delays may result from  factors that are not within Alpha
Innotech's control, such as:

         o        changes in economic conditions;

         o        changes  in  government   programs  that  provide  funding  to
                  companies and research institutions;

         o        changes in the regulatory  environment affecting life sciences
                  companies and life sciences research;

         o        market-driven pressures on companies to consolidate and reduce
                  costs; and

         o        other factors affecting research and development spending.

ALPHA INNOTECH MUST SPEND A SIGNIFICANT  AMOUNT OF TIME AND RESOURCES TO DEVELOP
PRODUCTS,  AND IF THESE  PRODUCTS  DO NOT  ACHIEVE  COMMERCIAL  ACCEPTANCE,  ITS
OPERATING RESULTS MAY SUFFER.

         Alpha  Innotech  expects  to  spend a  significant  amount  of time and
resources to develop new products and refine existing products.  In light of the
long product  development  cycles inherent in its industry,  these  expenditures
will be made well in advance of the prospect of deriving  revenues from the sale
of  new  products.  Alpha  Innotech's  ability  to  commercially  introduce  and
successfully  market new  products  is subject to a wide  variety of  challenges
during this development  cycle that could delay  introduction of these products.
If it does not achieve market acceptance of new products,  its operating results
will suffer.

ALPHA INNOTECH  DEPENDS ON A LIMITED NUMBER OF SUPPLIERS AND IT WILL FACE DELAYS
IN  MANUFACTURING  OF ITS PRODUCTS IF SHIPMENTS FROM THESE SUPPLIERS ARE DELAYED
OR INTERRUPTED.

         Alpha  Innotech  depends on its  vendors to provide  components  of its
products in required volumes, at appropriate quality and reliability levels, and
in compliance with regulatory requirements.  If supplies from these vendors were
delayed or  interrupted  for any  reason,  Alpha  Innotech  would not be able to
produce or sell  products in a timely  fashion or in  sufficient  quantities  or
under acceptable terms.

ALPHA  INNOTECH'S  DEPENDENCE ON CONTRACT  MANUFACTURING  AND OUTSOURCING  OTHER
PORTIONS OF ITS SUPPLY CHAIN MAY ADVERSELY  AFFECT ITS ABILITY TO BRING PRODUCTS
TO MARKET.

         As part of Alpha Innotech's efforts to streamline operations and to cut
costs,  it has  been  outsourcing  and  will  continue  to  evaluate  additional
outsourcing.  If Alpha Innotech's  contract  manufacturers or other  outsourcers
fail to perform their obligations in a timely manner or at satisfactory  quality
levels,  Alpha  Innotech's  ability to timely  bring  products  to market  could
suffer.


                                       43



IF ALPHA  INNOTECH IS UNABLE TO MAINTAIN ITS  RELATIONSHIPS  WITH  COLLABORATIVE
PARTNERS,  IT MAY HAVE  DIFFICULTY  DEVELOPING  AND  SELLING  ITS  PRODUCTS  AND
SERVICES.

         Alpha  Innotech  believes  that its success in  penetrating  its target
markets  depends in part on its  ability to develop and  maintain  collaborative
relationships with key companies as well as with key academic researchers. Alpha
Innotech  considers  DigiOpt  to be one  such  key  collaborative  relationship.
Relying  on these or other  collaborative  relationships  is risky to its future
success because:

         o        its   partners   may  develop   technologies   or   components
                  competitive with its products;

         o        some  of  its  agreements  may  terminate  prematurely  due to
                  disagreements between it and its partners;

         o        its  partners  may  not  devote  sufficient  resources  to the
                  development and sale of its products;

         o        its partners may be unable to provide the  resources  required
                  for it to progress in the collaboration on a timely basis;

         o        its collaborations may be unsuccessful; or

         o        it  may  not  be  able  to  negotiate   future   collaborative
                  arrangements on acceptable terms.

ALPHA INNOTECH'S CURRENT SALES, MARKETING AND TECHNICAL SUPPORT ORGANIZATION MAY
LIMIT ITS ABILITY TO SELL ITS NEWER PRODUCTS.

         Alpha Innotech  believes that the market for  microplate  format arrays
and their  readers is still  evolving,  and that initial sales for these readers
will requires  significant  support from its in-house  applications  scientists.
Alpha Innotech may not have sufficient  in-house  resources to support worldwide
sales of these products.

ALPHA INNOTECH FACES INTENSE COMPETITION FROM OTHER COMPANIES.

         Alpha  Innotech's  products  face  competition  from  other  companies,
including Bio Rad, Kodak, Fuji, UVP, Perkin Elmer,  Molecular Devices and Tecan,
that have more  financial  resources,  technical  staff  and  manufacturing  and
marketing  capabilities  than it does. It may be difficult for Alpha Innotech to
compete  with larger  companies  investing  greater  resources  in  development,
marketing and distribution of their products.

DUE TO THE  INTERNATIONAL  NATURE OF ALPHA  INNOTECH'S  BUSINESS,  POLITICAL  OR
ECONOMIC CHANGES OR OTHER FACTORS COULD HARM ITS BUSINESS.

         A significant amount of Alpha Innotech's revenue is currently generated
from sales outside the United States.  Though such  transactions are denominated
in U.S.  dollars,  Alpha Innotech's future revenue,  gross margin,  expenses and
financial  condition  are still  affected by such  factors as changes in foreign
currency exchange rates,  unexpected  changes in, or impositions of, legislative
or  regulatory  requirements,  including  export and trade  barriers  and taxes;
longer payment cycles and greater difficulty in accounts receivable  collection.
Alpha Innotech is also subject to general  geopolitical risks in connection with
international  operations,  such as political,  social and economic instability,
potential  hostilities and changes in diplomatic and trade relationships.  Alpha
Innotech cannot assure investors that one or more of the foregoing  factors will
not have a material  adverse  effect on its  business,  financial  condition and
operating results or require it to modify its current business practices.


                                       44



THIRD  PARTIES MAY CLAIM THAT ALPHA  INNOTECH IS INFRINGING  THEIR  INTELLECTUAL
PROPERTY, AND IT COULD SUFFER SIGNIFICANT LITIGATION OR LICENSING EXPENSES OR BE
PREVENTED FROM SELLING PRODUCTS.

         While Alpha Innotech does not believe that any of its products infringe
the valid  intellectual  property rights of third parties,  it may be unaware of
intellectual  property  rights of others that may cover some of its  technology,
products or services.  Any litigation  regarding  patents or other  intellectual
property could be costly and  time-consuming and could divert its management and
key personnel  from its business  operations.  The  complexity of the technology
involved and the uncertainty of intellectual  property litigation increase these
risks.  Claims of intellectual  property  infringement  might also require it to
enter into  costly  license  agreements.  However,  it may not be able to obtain
license agreements on terms acceptable to it, or at all. Alpha Innotech also may
be subject to significant damages or injunctions against development and sale of
certain of its products.

THIRD PARTIES MAY INFRINGE ALPHA INNOTECH'S  INTELLECTUAL  PROPERTY,  AND IT MAY
EXPEND SIGNIFICANT RESOURCES ENFORCING ITS RIGHTS OR SUFFER COMPETITIVE INJURY.

         Alpha  Innotech's  success  depends  in large  part on its  proprietary
technology.  Alpha  Innotech  relies on a  combination  of patents,  copyrights,
trademarks, trade secrets, confidentiality provisions and licensing arrangements
to establish and protect its  proprietary  rights.  If it fails to  successfully
enforce its intellectual property rights, its competitive position could suffer,
which could harm its operating results.

         Alpha Innotech's pending patent and trademark registration applications
may not be allowed,  or  competitors  may challenge the validity or scope of its
patents, copyrights or trademarks. In addition, its patents may not provide us a
significant competitive advantage.

         Alpha  Innotech  may be  required  to spend  significant  resources  to
monitor  and  police its  intellectual  property  rights.  It may not be able to
detect  infringement  and its competitive  position may be harmed before it does
so. In  addition,  competitors  may  design  around  its  technology  or develop
competing  technologies.  Intellectual  property  rights  and  Alpha  Innotech's
ability  to enforce  them may also be  unavailable  or  limited in some  foreign
countries,  which could make it easier for  competitors  to capture market share
and result in lost revenues.

IF ALPHA  INNOTECH  LOSES ITS KEY  PERSONNEL  OR IS UNABLE TO ATTRACT AND RETAIN
ADDITIONAL SKILLED PERSONNEL, ITS BUSINESS MAY SUFFER.

         Alpha Innotech depends  substantially  on the principal  members of its
management,  including Haseeb Chaudhry,  Chief Executive Officer and Darryl Ray,
Chief Operating  Officer and President Any officer or employee can terminate his
or her  relationship  with  Alpha  Innotech  at any time and work for one of our
competitors.  Alpha  Innotech's  ability to operate  successfully and manage its
potential  future  growth  depends  significantly  upon  retaining key research,
technical, sales, marketing,  managerial and financial personnel, and attracting
and  retaining  additional  highly  qualified  personnel in these  areas.  Alpha
Innotech faces intense competition for such personnel from numerous companies in
the highly  competitive  northern  California  business  area.  The inability to
attract  and retain  these  personnel  could  result in delays in the  research,
development and commercialization of its potential products.

INTEGRATING  ACQUIRED   TECHNOLOGIES  MAY  BE  COSTLY  AND  MAY  NOT  RESULT  IN
TECHNOLOGICAL ADVANCES.

         Alpha Innotech has licensed in certain technologies and is working with
collaborators to integrate those  technologies  into future  products.  However,
market  advances  resulting  from the  integration  of  technologies  may not be
achieved as successfully or rapidly as anticipated, if at all.


                                       45



IF ALPHA  INNOTECH  LOSES  SOME OR ALL  RIGHTS TO THE  DIGITAL  OPTICAL  IMAGING
PATENTS, ITS BUSINESS MAY SUFFER.

         Under  the  terms  of an  agreement  between  Digital  Optical  Imaging
Corporation  ("DigiOpt") and Alpha  Innotech,  Alpha Innotech  received  certain
exclusive  rights  to  make  and  sell  products  incorporating  the  inventions
disclosed  in four  United  States  patents.  Alpha  Innotech  is  working  with
strategic partners to incorporate these technologies into future products. Under
the terms of the  agreement,  Alpha  Innotech is obligated to pay certain patent
prosecution costs and maintenance  fees.  Failure to pay these costs and fees as
they arise may lead to abandonment of the rights.  Furthermore,  under the terms
of the agreement,  DigiOpt may convert the exclusive license to non-exclusive if
Alpha  Innotech  does  not  make  its  first   commercial   sale  of  a  product
incorporating  the licensed  technology by August 4, 2006, and may terminate the
license if Alpha Innotech does not make its first  commercial  sale of a product
incorporating  the  licensed  technology  by  February  4,  2007.  Loss of these
exclusive rights by abandonment,  conversion,  or termination would impair Alpha
Innotech's ability to develop and market new products.

IF ALPHA  INNOTECH  SUFFERS LOSS TO ITS  FACTORIES,  FACILITIES OR  DISTRIBUTION
SYSTEM DUE TO CATASTROPHE, ITS OPERATIONS COULD BE SERIOUSLY HARMED.

         Alpha  Innotech's  factories,  facilities and  distribution  system are
subject to catastrophic loss due to fire,  flood,  terrorism or other natural or
man-made disasters. In particular, its production facilities and headquarters in
California  could be subject to a  catastrophic  loss caused by  earthquake.  If
these facilities were to experience a catastrophic  loss, it could disrupt Alpha
Innotech's  operations,  delay  production,  shipments and revenue and result in
large  expenses  to repair or replace  the  facility.  Although  Alpha  Innotech
carries insurance for property damage and business interruption, we do not carry
insurance or financial  reserves for  interruptions  or potential losses arising
from earthquakes.

ALPHA INNOTECH FINANCIAL INFORMATION

         Certain audited  financial  information of Alpha Innotech for the years
ended December 31, 2004 and 2003, and unaudited  financial  information  for the
quarters  ended March 31, 2005 and 2004, is attached to this Proxy  Statement as
APPENDIX C.


                                       46



SELECTED FINANCIAL DATA AND SELECTED SUMMARY PRO FORMA FINANCIAL INFORMATION

         The following  selected financial data is qualified in its entirety by,
and should be read in  conjunction  with,  the other  information  and financial
statements,  including  the  notes  thereto,  appearing  elsewhere  in the Proxy
Statement and/or incorporated herein by reference.


SELECTED FINANCIAL DATA

                                                                                                                 Three Months
                                                                       Year Ended December 31,                  Ended March 31,
                                                       ---------------------------------------------------    ------------------
                                                         2000       2001       2002       2003       2004       2004       2005
                                                       -------    -------    -------    -------    -------    -------    -------
                                                                          (in thousands, except per share data)
                                                                                                        
Statement of Operations Data:

Revenues ...........................................    13,198     14,275     13,802     10,493     10,511      1,907      2,505

Cost of goods sold .................................     6,604      7,563      7,157      5,331      5,378      1,016      1,405
                                                       -------    -------    -------    -------    -------    -------    -------

     Gross profit ..................................     6,594      6,712      6,645      5,162      5,133        891      1,100
                                                       -------    -------    -------    -------    -------    -------    -------

Operating expenses:
     Sales and marketing ...........................     5,635      4,882      4,522      3,571      3,925        822      1,061
     Research and development ......................     1,521      2,288      2,585      1,662      1,963        489        397
     General and administrative expenses ...........       366      1,548      2,069      1,600      1,968        326        285
                                                       -------    -------    -------    -------    -------    -------    -------

         Total operating expenses ..................     7,522      8,718      9,176      6,833      7,856      1,637      1,743
                                                       -------    -------    -------    -------    -------    -------    -------

             Loss from operations ..................      (928)    (2,006)    (2,531)    (1,671)    (2,723)      (746)      (643)
                                                       -------    -------    -------    -------    -------    -------    -------

Other income (expenses):
     Interest expense ..............................      (232)      (300)      (127)      (321)      (574)       (62)       (43)
     Other income (expense), net ...................        32        (44)        54         (8)        (1)      --           (2)
                                                       -------    -------    -------    -------    -------    -------    -------

         Total other income (expense) ..............      (200)      (344)       (73)      (329)      (575)       (62)       (45)
                                                       -------    -------    -------    -------    -------    -------    -------

             Loss before provision for income taxes     (1,128)    (2,350)    (2,604)    (2,000)    (3,298)      (808)      (688)

Provision for income taxes .........................       178       --         --         --         --         --         --
                                                       -------    -------    -------    -------    -------    -------    -------

     Net loss ......................................    (1,306)    (2,350)    (2,604)    (2,000)    (3,298)      (808)      (688)

Accretions on redeemable convertible preferred stock      --         (396)      (704)      (704)      (704)      (176)      (218)
                                                       -------    -------    -------    -------    -------    -------    -------

     Net loss applicable to common stockholders ....    (1,306)    (2,746)    (3,308)    (2,704)    (4,002)      (984)      (906)
                                                       =======    =======    =======    =======    =======    =======    =======

Net loss per share - basic and diluted .............     (0.06)     (0.12)     (0.14)     (0.12)     (0.17)     (0.04)     (0.04)
                                                       =======    =======    =======    =======    =======    =======    =======

Weighted average shares outstanding -
     basic and diluted .............................    23,000     23,002     23,056     23,169     23,174     23,172     23,178
                                                       =======    =======    =======    =======    =======    =======    =======

Proforma net loss (1) ..............................                                                (3,298)                 (688)
                                                                                                   =======               =======

Proforma net loss per share (1) ....................                                                 (0.34)                (0.07)
                                                                                                   =======               =======

Shares used in computing pro forma net loss
     per share (1) .................................                                                 9,725                 9,725
                                                                                                   =======               =======





                                                                                                  As of March 31,
                                                          As of December 31,                    ------------------
                                         ---------------------------------------------------     2005        2005
                                           2000       2001       2002       2003       2004     Actual    Proforma(2)
                                         -------    -------    -------    -------    -------    -------    -------
                                                                       (in thousands)
                                                                                          
Balance Sheet Data:
Cash and cash equivalents ............       229      2,821        952        172         40        142      2,412
Working capital ......................    (1,646)     3,541       (315)    (2,120)    (2,161)    (2,708)         1
Total assets .........................     5,331      7,722      6,817      4,847      4,424      3,911      6,236
Total indebtedness ...................     3,281        951      1,753      2,044      1,610      1,609      1,109
Redeemable Convertible Preferred stock      --        8,160      8,864      9,569     12,454     12,671       --
Total shareholders' deficit ..........    (1,258)    (4,086)    (7,112)    (9,773)   (13,102)   (14,007)     1,373


(1)      See unaudited  proforma  consolidated  statement of operations  for the
         year ended December 31, 2004 and the three months ended March 31, 2005.

(2)      See unaudited proforma consolidated balance sheet as of March 31, 2005.


                                       47




EARNINGS PER SHARE

                                                                                                                Three Months
                                                        Year Ended December 31,                                Ended March 31,
                                ---------------------------------------------------------------------    --------------------------
                                    2000         2001           2002           2003           2004           2004            2005
                                -----------  -----------    -----------    -----------    -----------    -----------    -----------
                                                                                                           
Net loss ....................    (1,306,253)  (2,350,190)    (2,604,419)    (2,000,466)    (3,297,755)      (808,245)      (687,783)

Acretions on redeemable
  convertible preferred stock          --       (395,655)      (704,403)      (704,403)      (704,403)      (176,101)      (217,504)
                                -----------  -----------    -----------    -----------    -----------    -----------    -----------

                                 (1,306,253)  (2,745,845)    (3,308,822)    (2,704,869)    (4,002,158)      (984,346)      (905,287)
                                ===========  ===========    ===========    ===========    ===========    ===========    ===========

Net loss per share ..........         -0.06        -0.12          -0.14          -0.12          -0.17          -0.04          -0.04
                                ===========  ===========    ===========    ===========    ===========    ===========    ===========

Weighted average shares
   outstanding ..............    23,000,000   23,001,500     23,055,813     23,139,485     23,173,935     23,172,140     23,178,407
                                ===========  ===========    ===========    ===========    ===========    ===========    ===========



QUARTERLY RESULTS OF OPERATIONS

         The  following  table sets  forth the  unaudited  quarterly  results of
operations data of Alpha Innotech  Corporation for the nine most recent quarters
ended March 31,  2005.  The  information  in the table  below  should be read in
conjunction  with their  consolidated  financial  statements  and notes  thereto
included elsewhere in this proxy. This information has been prepared on the same
basis as the consolidated  financial statements and the information includes all
adjustments  that they consider  necessary for a fair statement of our financial
position and  operating  results for the  quarters  presented.  Their  quarterly
operating   results  have  varied   substantially  in  the  past  and  may  vary
substantially  in the future.  You should not draw any  conclusions  about their
future results of operations for any particular quarter.



                                                                    Three Months Ended
                                   --------------------------------------------------------------------------------------
                                  March 31, June 30,  Sept. 30,  Dec. 31, March 31, June 30, Sept. 30, Dec. 31,  March 31,
                                    2003      2003      2003      2003      2004      2004      2004      2004      2005
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------
                                                          (in thousands, except per share data)
                                                                                          
Statement of Operations Data:

Revenues .......................    2,404     2,483     3,050     2,556     1,907     2,903     2,549     3,152     2,505

Cost of goods sold .............    1,248     1,316     1,497     1,270     1,016     1,510     1,333     1,519     1,405
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

     Gross profit ..............    1,156     1,167     1,553     1,286       891     1,393     1,216     1,633     1,100
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

Operating expenses:
     Sales and marketing .......      781       871       999       920       816     1,123       904     1,082     1,060
     Research and development ..      378       423       452       409       489       549       489       436       398
     General and administrative
        expenses ...............      323       410       431       436       325       337       372       934       286
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

        Total operating expenses    1,482     1,704     1,882     1,765     1,630     2,009     1,765     2,452     1,744
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

           Loss from operations      (326)     (537)     (329)     (479)     (739)     (616)     (549)     (819)     (644)
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

Other income (expenses):
     Interest expense ..........      (79)      (81)      (80)      (81)      (61)      (81)     (110)     (322)      (43)
     Other income (expense), net        2         0        (8)       (2)       (2)       (1)       (1)        3        (1)
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

        Total other income
           (expense) ...........      (77)      (81)      (88)      (83)      (63)      (82)     (111)     (319)      (44)
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

           Loss before provision
              for income taxes .     (403)     (618)     (417)     (562)     (802)     (698)     (660)   (1,138)     (688)

Provision for income taxes .....     --        --        --        --        --        --        --        --        --
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

     Net loss ..................     (403)     (618)     (417)     (562)     (802)     (698)     (660)   (1,138)     (688)

Accretions on redeemable
   convertible preferred stock .     (176)     (176)     (176)     (176)     (176)     (176)     (176)     (176)     (218)
                                   ------    ------    ------    ------    ------    ------    ------    ------    ------

     Net loss applicable to
        common stockholders ....     (579)     (794)     (593)     (738)     (978)     (874)     (836)   (1,314)     (906)
                                   ======    ======    ======    ======    ======    ======    ======    ======    ======

Net loss per share - basic and
   diluted .....................    (0.03)    (0.03)    (0.03)    (0.03)    (0.04)    (0.04)    (0.04)    (0.06)    (0.04)
                                   ======    ======    ======    ======    ======    ======    ======    ======    ======



                                       48



     DISCUSSION OF QUARTERLY RESULTS OF OPERATIONS

         Revenues  do not  follow a  seasonal  pattern.  There  has not been any
material  growth in the mix of revenue or sales  prices;  however,  revenues  do
fluctuate between quarters based on the number of units sold.

         There  were  no  significant  changes  in cost of  labor  or  overhead.
However,  material  costs  have been  increasing  due to the  upgrading  of some
components. This has resulted in a general increase in material costs.

         Sales  and  marketing  costs  have  increased  primarily  due  to  cost
associated  with  increasing  international  revenues,  investment  in  business
development, and the replacement of a Director of Sales with a Vice President of
Sales and Marketing.

         Research and  development  costs in 2004 were  incurred and resulted in
improvements to the gel imaging product line. This product was introduced in the
second half of 2004. In addition  Alpha  Innotech  continues to fund  additional
research and development related to NovaRay system into 2005.

         The  increase in general and  administrative  expenses  for the quarter
ended December 31, 2004 was attributed to one time costs  associated  with legal
costs, merger related costs, and increased executive costs.

         The  increase in interest  expense for the quarter  ended  December 31,
2004 was  attributed the additional  debt and redeemable  convertible  preferred
stock outstanding during that period.


                                       49



MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION FOR THE FISCAL YEAR
ENDED DECEMBER 31, 2004 AND QUARTER ENDED MARCH 31, 2005

         The  following  Management's   Discussion  and  Analysis  of  Financial
Condition and Results of Operations  contains  forward-looking  statements  that
involve risks and  uncertainties,  such as statements of our plans,  objectives,
expectations  and  intentions.   Any  statements  that  are  not  statements  of
historical   fact  are   forward-looking   statements.   When  used,  the  words
"anticipate,"  "believe,"  "estimate,"  "expect,"  "intend," "plan," and similar
expressions  identify  certain  of  these  forward-looking   statements.   These
forward-looking  statements  are subject to risks and  uncertainties  that could
cause  actual  results or events to differ  materially  from those  expressed or
implied  by the  forward-looking  statements  in  this  Proxy  Statement.  Alpha
Innotech does not undertake any obligation to update forward-looking  statements
to  reflect  events or  circumstances  occurring  after  the date of this  Proxy
Statement.

         CRITICAL ACCOUNTING POLICIES

         Alpha Innotech's  financial statements have been prepared in accordance
with accounting  principles  generally accepted in the United States of America.
The preparation of these financial  statements requires it to make estimates and
judgments that affect the reported amounts of its assets,  liabilities,  revenue
and expenses. Alpha Innotech bases its estimates on historical experience and on
various  other   assumptions  that  it  believes  to  be  reasonable  under  the
circumstances,  the results of which form the basis for making  judgments  about
the carrying values of assets and liabilities that are not readily apparent from
other sources.  Actual results may differ from these  estimates  under different
assumptions or conditions. Alpha Innotech's critical accounting policies are set
forth below.

         REVENUE RECOGNITION

         Alpha  Innotech's  revenue is derived from the sale of digital  imaging
systems,  net of returns and  allowances  and is  recognized  when a contract is
executed,  all  delivery  obligations  have  been  met,  the  fee is  fixed  and
determinable,  and  collectibility  is  probable.  All  products are sold with a
1-year  standard  warranty  agreement and Alpha  Innotech  records an associated
reserve for estimated warranty costs.

         For products sold where software is deemed to be more than  incidental,
Alpha Innotech  follows  Statement of Position ("SOP") 97-2,  "Software  Revenue
Recognition,"  as amended.  Revenue  earned on software  arrangements  involving
multiple  elements  is  allocated  to  each  element  based  on  vendor-specific
objective evidence, which is based on the price charged when the same element is
sold  separately.  When a digital imaging system is sold, the multiple  elements
are  software and  maintenance  and  support.  Revenue  allocated to software is
recognized when a contract is executed,  all delivery obligations have been met,
the fee is fixed and determinable, and collection is probable. Revenue allocated
to maintenance and support is recognized as deferred  revenue when a contract is
executed,  all  delivery  obligations  have  been  met,  the  fee is  fixed  and
determinable,  and collection is probable.  Deferred revenue for maintenance and
support is recognized  ratably over the maintenance term (typically for a period
of one year,  beginning when a digital  imaging system is considered  sold or an
extended maintenance and support contract is signed).

         Revenue  is  recorded  net  of  estimated  returns.   Alpha  Innotech's
management  makes  estimates  of potential  future  product  returns  related to
current period revenue.  Alpha Innotech  analyzes  historical  returns,  current
economic trends and changes in its customer demand and acceptance of its product
when  evaluating  the  adequacy  of its  allowance  for sales  returns and other
allowances,  such as allowance for bad debts,  in any accounting  period.  As of
March 31, 2005 and December  31,  2004,  Alpha  Innotech's  allowance  for sales
returns was $56,092 and $35,003,  respectively,  and its  allowance for doubtful
accounts was $47,378 and $47,378, respectively.


                                       50



         INVENTORY

         Alpha  Innotech  records  inventories  at the  lower of cost or  market
value,  with cost generally  determined on a first-in,  first-out  basis.  Alpha
Innotech  performs  periodic  valuation  assessments  based on  projected  sales
forecasts  and  analyzing  upcoming  changes  in  future  configurations  of its
products and record  inventory  write-downs  for excess and obsolete  inventory.
Although  Alpha  Innotech  strives to ensure the accuracy of its  forecasts,  it
periodically is faced with uncertainties.  As of March 31, 2005 and December 31,
2004, Alpha Innotech's  allowance for excess and obsolete  inventory was $80,394
and $80,781, respectively.

         DEFERRED TAXES VALUATION ALLOWANCE

         Alpha Innotech believes that sufficient  uncertainties  exist regarding
the future realization of deferred tax assets, and, accordingly a full valuation
allowance is required  and  amounted to $4.5  million at December  31, 2004.  In
subsequent  periods when Alpha Innotech  generates pre-tax income, a tax expense
will not be recorded to the extent that the remaining valuation allowance can be
used to offset that  expense.  Once a  consistent  pattern of pre-tax  income is
established  or other  events occur that  indicate  that the deferred tax assets
will  be  realized,  additional  portions  or  all of  the  remaining  valuation
allowance  will be  reversed  back to income.  Should  Alpha  Innotech  generate
pre-tax losses in subsequent periods, a tax benefit will not be recorded and the
valuation allowance will be increased.  Despite the valuation  allowance,  Alpha
Innotech  retains  the ability to utilize the  benefits  of net  operating  loss
carryforwards and research and development credits.

         The  following  Management's   Discussion  and  Analysis  of  Financial
Condition and Results of  Operations  should be read in  conjunction  with Alpha
Innotech's financial  statements and the related notes thereto.  This discussion
contains forward-looking statements based upon current expectations that involve
risks  and   uncertainties,   such  as  Alpha  Innotech's   plans,   objectives,
expectations and intentions.  Alpha Innotech's  actual results and the timing of
events could differ materially from those  anticipated in these  forward-looking
statements as a result of several factors.

COMPARISON OF THREE MONTHS ENDED MARCH 31, 2005 AND 2004

REVENUES

         Alpha   Innotech's   revenues  are  primarily   derived  from  sale  of
instruments,  software,  consumables,  and service  contracts.  Revenues for the
three  months  ended March 31, 2005  increased  $0.6  million or 31.4%,  to $2.5
million,  from $1.9 million for the three months ended March 31, 2004. There was
not any material growth in the mix of revenue between software,  consumables, or
service contracts,  in the number of units sold, or sales prices.  However,  the
number of units sold for instrument sales increased,  with no material change in
price, due to improvements in the gel imaging product line.

         Revenues  outside  of  the  United  States  represented  36%  of  Alpha
Innotech's  total  revenues for the three months ended March 31, 2005 and 27% of
Alpha  Innotech's  total revenues for the three months ended March 31, 2004. Due
to  emerging  markets,  especially  in  Asia,  Alpha  Innotech  anticipates  its
international  revenue to grow and account for an  increasing  percentage of the
total revenue.

COST OF GOODS SOLD

         Cost of goods sold includes direct  material,  labor and  manufacturing
overhead.  Cost f goods sold for the three months ended March 31, 2005 increased
$0.4 million or 38.4%,  to $1.4 million,  from $1.0 million for the three months
ended March 31, 2004.


                                       51



GROSS PROFIT

         Gross profit for the three months ended March 31, 2005  increased  $0.2
million or 23.4%,  to $1.1  million,  from $0.9  million for three  months ended
March 31, 2004.  The gross profit as a percent of revenues  declined  from 46.7%
for the three  months  ended March 31, 2004 to 43.9% for the three  months ended
March 31, 2005. There were no significant  changes in cost of labor or overhead.
However,  material  costs did increase due to the  upgrading of some  components
which increased material costs.

SALES AND MARKETING EXPENSES

         Sales and marketing  expenses for the three months ended March 31, 2005
increased $0.2 million or 29.0%, to $1.0, from $0.8 million for the three months
ended  March 31,  2004.  The sales and  marketing  expenses as a  percentage  of
revenues decreased from 43.1% for the three months ended March 31, 2004 to 42.3%
for the three  months  March  31,  2004.  The  increase  of sales and  marketing
expenses were primarily due to cost  associated  with  increasing  international
revenues,  investment in business  development,  and  replacement of Director of
Sales with Vice President of Sales and Marketing.

RESEARCH AND DEVELOPMENT EXPENSES

         Research and development  expenses for the three months ended March 31,
2005 decreased $0.1 million or 18.7%, to $0.4 million, from $0.5 million for the
three months ended March 31, 2004.  The research and  development  expenses as a
percentage of revenues decreased from 25.6% for the three months ended March 31,
2004 to 15.9% for the three months March 31, 2005.  The decrease is in general a
result of significant product improvements for the gel imaging product line that
were made in 2004,  that did not occur in 2005, as the product was introduced in
the  second  half of 2004.  Alpha  Innotech  continues  to fund the new  NovaRay
system.

GENERAL AND ADMINISTRATIVE EXPENSES

         General and  administrative  expenses  for three months ended March 31,
2005 and 2004 were $0.3 million.  The general and  administrative  expenses as a
percentage of revenues decreased from 17.1% for the three months ended March 31,
2004 to 11.4% for the year ended December 31, 2004.

COMPARISON OF YEARS ENDED DECEMBER 31, 2003 TO 2004

         REVENUES

         Alpha   Innotech's   revenues  are  primarily   derived  from  sale  of
instruments,  software,  consumables,  and service  contracts.  Revenues for the
years ended  December  31, 2004 and 2003 were $10.5  million and $10.5  million,
respectively.  There was not any material  growth in the mix of revenue  between
instruments, software, consumables, or service contracts, in the number of units
sold, or sales prices.

         Revenues  outside  of  the  United  States  represented  39%  of  Alpha
Innotech's  total  revenues for the year ended  December 31, 2004 and 30% of its
total revenues for the year ended  December 31, 2003.  Due to emerging  markets,
especially in Asia, Alpha Innotech anticipates its international revenue to grow
and account for an increasing percentage of the total revenue.

         COST OF GOODS SOLD

         Cost of goods sold includes direct  material,  labor and  manufacturing
overhead.  The cost of goods sold for the year ended  December 31, 2004 was $5.4
million as compared to $5.3 million for the year ended December 31, 2003.


                                       52



         GROSS PROFIT

         The gross profit declined from $5.2 million for the year ended December
31, 2003 to $5.1 million for the year ended  December 31, 2004. The gross profit
as a percent of revenues  declined  from 49.2% for the year ended  December  31,
2003 to 48.8% for the year ended December 31, 2004.

         SALES AND MARKETING EXPENSES

         Sales and  marketing  expenses  for the year ended  December  31,  2004
increased $0.3 million or 9.9%, to $3.9 million,  from $3.6 million for the year
ended  December 31, 2003.  The sales and  marketing  expenses as a percentage of
revenues  increased from 34.0% for the year ended December 2003 to 37.3% for the
year ended December 31, 2004. The increase of sales and marketing  expenses were
primarily  due  to  cost  associated  with  increasing  international  revenues,
investment in business  development,  higher sales meeting cost, and replacement
of Alpha  Innotech's  Director  of  Sales  with  Vice  President  of  Sales  and
Marketing.

         RESEARCH AND DEVELOPMENT EXPENSES

         Research and development  expenses for the year ended December 31, 2004
increased $0.3 million or 18.1%, to $2.0 million, from $1.7 million for the year
ended December 31, 2003. The research and  development  expenses as a percentage
of revenues  increased  from 15.8% for the year ended December 2003 to 18.7% for
the year ended  December  31,  2004.  Alpha  Innotech  continues to fund the new
NovaRay  system.   In  addition,   Alpha  Innotech  made   significant   product
improvements for the gel imaging product line that was introduced in second half
of 2004.

         GENERAL AND ADMINISTRATIVE EXPENSES

         General and  administrative  expenses for year ended  December 31, 2004
increased $0.4 million or 23.0% to $2.0 million,  from $1.6 million for the year
ended December 31, 2003. The general and administrative expenses as a percentage
of revenues  increased  from 15.2% for the year ended December 2003 to 18.7% for
the year ended  December  31, 2004.  The increase in general and  administrative
expenses was  attributed  to higher legal costs  related to Series A-1 Preferred
Stock  financing,  the Merger  Agreement,  and  expense  related to  issuance of
warrants to senior executive.

         OTHER INCOME (EXPENSE)

         Interest  expense for the year ended December 31, 2004 was $0.6 million
as compared to $0.3 million for the year ended  December 31, 2003.  The increase
in  interest  expense  was  due to an  increase  in the  redeemable  convertible
preferred stock offset by the general reduction in debt.

LIQUIDITY AND CAPITAL RESOURCES

         To date,  Alpha  Innotech has funded its operations  primarily  through
private sales of equity  securities and borrowings.  As of March 31, 2005, Alpha
Innotech  had raised a total of $2.20  million in  convertibles  notes that were
converted into redeemable  convertible preferred stock in 2004, a total of $2.18
million,  net of offering  costs,  from the issuance of  redeemable  convertible
preferred stock, and a total of $0.67 million,  net of offering costs,  from the
issuance of common stock. As of March 31, 2005,  Alpha  Innotech's  resources of
liquidity  consisted  of $0.1  million  in cash  and it had a  negative  working
capital of $2.7 million.

         At March 31, 2005, Alpha Innotech had the following available to it:


                                       53



         BFI  BUSINESS  FINANCE LINE OF CREDIT - In  connection  with funding of
operations  and  development  of new products on March 9, 2004,  Alpha  Innotech
established  a line of credit with BFI Business  Finance  ("BFI"),  in which BFI
uses Alpha Innotech's  accounts receivable as collateral to obtain advances from
BFI up to 80% of Alpha Innotech's accounts receivable balance at the time of the
borrowing,  but with principal  advances not to exceed $1 million.  The interest
rate of the line of credit is variable,  and bears interest at a rate of 3% over
prime.  The interest rate as of March 31, 2005 was 8.75% plus 6%  administrative
fee.

         BFI BUSINESS TERM LOAN - In connection  with funding of operations  and
development of new products on August 27, 2004,  Alpha Innotech  executed a note
in the amount of  $300,000  payable to the BFI  Business  Finance  ("BFI").  The
interest rate  applicable to the note was variable,  and bore interest at a rate
of 3% over  prime.  The  interest  rate as of March 31,  2005 was 8.75%  plus 6%
administrative  fee. The loan matured and principal  payments were due to BFI on
December 31, 2004.  However,  in December 2004, BFI and Alpha Innotech agreed to
extend  the  note for an  additional  90 days to March  31,  2005,  for a fee of
$20,000. The loan was repaid on April, 5, 2005.

         XTRANA TERM LOAN  AGREEMENT - On December 14, 2004,  Alpha Innotech and
Xtrana  entered  into a merger  agreement,  pursuant  to  which a  wholly  owned
subsidiary  of Xtrana  will be merged with and into Alpha  Innotech,  with Alpha
Innotech  continuing  after  the  merger  as  the  surviving  corporation  and a
wholly-own subsidiary of Xtrana.  Pursuant to the terms of the merger agreement,
Xtrana made a loan to Alpha  Innotech in the amount of $500,000 on December  16,
2004. The  obligations  under the loan are secured by a second priority lien and
security interest in substantially all assets of Alpha Innotech.  The loan bears
interest at the rate of 6% per annum.

         LOAN FROM ALEXANDRIA - On April 8, 2005,  Alpha Innotech secured a loan
in the amount of $1,500,000.  See "ALPHA INNOTECH LOAN FROM  ALEXANDRIA" on page
24 of this proxy statement.

         Cash  provided by operating  activities  was $0.1 million for the three
months  ended March 31, 2005  compared to cash used in operating  activities  of
$0.1 million for the three months ended March 31, 2004.  Operating losses were a
use of cash and working  capital was a source of cash for Alpha Innotech for the
three  months  ended March 31,  2005 and 2004.  Cash was  provided by  operating
activities  for the three  months  ended March 31, 2005  primarily  due to Alpha
Innotech's  continued management of cash. Alpha Innotech was able to offset cash
used to fund its  operating  losses  by  increasing  cash  collections  from its
customers and deferring cash payments to its vendors. Cash is being used to fund
operating  losses due the cash flows from gross margin being inadequate to cover
expenditures for sales and marketing,  research and development, and general and
administrative  expenses.  In the three months ended March 31, 2005, the primary
source  of  cash  provided  by  operating   activities   were  $0.2  million  of
depreciation and  amortization,  $0.4 million  decrease in accounts  receivable,
$0.1 million  decrease in prepaid  expenses and other  current  asset,  and $0.2
million increase in accounts  payable,  offset by $0.7 million net loss and $0.1
decrease in accrued  expenses.  In the three months  ended March 31,  2004,  the
primary  source of cash used in operating  activities was $0.8 million net loss,
$0.3 million decrease in accounts payable, and $0.1 million decrease in deferred
revenue,  offset by $0.2  million of  depreciation,  $0.6  million  decrease  in
accounts  receivable,  $0.2 million  decrease in  inventories,  and $0.1 million
increase in accrued liabilities.

         Cash used in investing activities was $0.0 million and $0.1 million for
the three months ended March 31, 2005 and 2004, respectively. Cash has been used
in investing activities to purchase property and equipment needed to support our
operations.

         Cash provided by financing activities was $0.0 million and $0.1 million
for the three months ended March 31, 2005 and 2004, respectively, with borrowing
being primarily offset by repayments. In


                                       54



the three months ended March 31, 2004,  $0.5 million was provided from borrowing
of debt obligations and $0.3 million from issuance of convertible notes,  offset
by $0.7 million of repayments of debt obligation.

         Cash flow used in  operating  activities  was $1.3 million for the year
ended December 31, 2004. Operating losses were a use of cash and working capital
was a source of cash for us for the year ended December 31, 2004.  Cash was used
by operating  activities  for the year ended  December 31, 2004 primarily due to
operating  losses not being  funded by an increase in working  capital.  Cash is
being used to fund  operating  losses due the cash flows from gross margin being
inadequate  to  cover  expenditures  for  sales  and  marketing,   research  and
development, and general administrative expenses. While Alpha Innotech continued
to manage cash by deferring cash payments to its vendors and reducing  inventory
levels  needed to support its sales,  this  increase in cash flows from  working
capital was offset by a use of cash due to the increase in accounts  receivable.
In 2004,  accounts  receivable  increased by $0.7 due to an increase in sales of
$0.7K in December  2004  compared  to December  2003.  In 2004,  Alpha  Innotech
reduced  inventory by $0.5 million as it continued to  concentrate on increasing
inventory  turnover rate. In 2004,  Alpha  Innotech  continued to extend general
creditors to manage cash and accounts payable and accrued liabilities  increased
$0.4 million and $0.2 million, respectively.

         Cash flow used in  investing  activities  was $0.4 million for the year
ended December 31, 2004. Cash has been used in investing  activities to purchase
property and equipment needed to support our operations.

         Cash flow  provided by  financing  activities  was $1.5 million for the
year ended  December 31, 2004 with  borrowings  being offset by  repayments.  In
2004, cash from financing  activities  primarily  consisted of net proceeds from
issuance of convertible notes and proceeds from debt borrowings,  offset in part
by repayments of debt obligations.

         Alpha  Innotech's  ability to increase its sales and gross  margins and
manage its  operating  expenses to a level that can be financed by existing cash
is  critical  to its ability to  continue  as a going  concern.  Alpha  Innotech
intends to  continue  its  expenditure  levels on  marketing  and  research  and
development  and introduce new products to the market in 2005. If Alpha Innotech
does not achieve market  acceptance  its cash flows will suffer.  Alpha Innotech
plans to continue to manage expenses and working  capital and obtain  additional
funds through the proposed reverse merger with Xtrana, Inc.

         Alpha Innotech rents its office  facilities  under an operating  lease,
which expires on December 2011. The following  presents our  prospective  future
lease payments under this agreement:

         Year ending December 31:
         2005...........................................       $   440,766
         2006...........................................           449,766
         2007...........................................           458,955
         2008...........................................           468,338
         2009...........................................           477,918
         Thereafter.....................................           945,218
                                                               ------------

         Total minimum lease obligations................       $ 3,240,960
                                                               ============

         Alpha Innotech  believes that  subsequent to the reverse merger it will
have sufficient cash and available  borrowings to meet its operating and capital
requirements for at least the next twelve months. Long-term,  Alpha Innotech may
require  additional  funds to support our working  capital  requirements  or for
other purposes and may seek to raise  additional funds through public or private
equity or debt financing or from other sources. Alpha Innotech cannot assure you
that additional financing will be available on acceptable terms, or at all.


                                       55



         If  adequate  funds  are not  available  to  satisfy  either  short- or
long-term  capital  requirements,  Alpha Innotech might be required to limit its
operations significantly and its business might fail.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

         Alpha  Innotech does not use  derivative  financial  instruments in its
investment  portfolio  and has no  foreign  exchange  contracts.  Its  financial
instruments  consist of cash and cash  equivalents,  trade accounts  receivable,
accounts payable and long-term obligations. Alpha Innotech considers investments
in highly liquid  instruments  purchased with a remaining maturity of 90 days or
less at the date of purchase to be cash equivalents.  Alpha Innotech's  exposure
to market risk for changes in interest rates relates primarily to its short-term
investments  and short-term  obligations;  thus,  fluctuations in interest rates
would not have a material impact on the fair value of these securities.

         At  March  31,  2005,  Alpha  Innotech  had  $142,000  in cash and cash
equivalents. A hypothetical 10% increase or decrease in interest rates would not
have a material impact on its earnings or loss, or the fair market value or cash
flow of these instruments.

EFFECTS OF RECENT ACCOUNT PRONOUNCEMENTS

         In  December  2004,  the FASB  issued  SFAS  No.  123  (revised  2004),
SHARE-BASED  PAYMENT  ("SFAS  123(R)").  This is a  revision  of SFAS  No.  123,
ACCOUNTING FOR STOCK-BASED  COMPENSATION,  and supercedes APB No. 25, ACCOUNTING
FOR STOCK ISSUED TO EMPLOYEES  ("APB 25").  As noted in Alpha  Innotech's  stock
based  compensation  accounting policy described above, Alpha Innotech generally
does not record  compensation  expense for employee  stock  options.  Under SFAS
123(R), Alpha Innotech will be required to measure the cost of employee services
received in exchange for stock compensation,  based on the grant date fair value
(with limited  exceptions).  That cost will be recognized over the period during
which an  employee is  required  to provide  service in  exchange  for the award
(usually the vesting period). The fair value for stock options will be estimated
using an option-pricing  model. Excess tax benefits,  as defined in SFAS 123(R),
will be  recognized  as an  addition  to paid-in  capital.  Under  SFAS  123(R),
measurement and recognition of compensation  expense related to Alpha Innotech's
restricted  stock will be the same as APB 25. On April 14, 2005,  the Securities
and Exchange Commission ("SEC") announced the adoption of a rule that defers the
required  effective date of SFAS 123(R).  The SEC rule provides that SFAS 123(R)
is now  effective for  registrants  as of the beginning of the first fiscal year
beginning after June 15, 2005,  instead of at the beginning of the first quarter
after June 15, 2005.  Therefore,  the required effective date of SFAS 123(R) for
calendar  year-end  public  companies  is  January 1, 2006.  Alpha  Innotech  is
currently evaluating the impact of this statement on its consolidated  financial
statements.

         In November 2004, FASB issued SFAS 151,  INVENTORY COST. This statement
amends  Accounting  Research Bulletin No. 43, Chapter 4, INVENTORY  PRICING,  to
clarify the accounting for abnormal amounts of idle facility  expense,  freight,
handling costs and wasted material (spoilage). The provision of the statement is
effective for inventory  costs incurred during fiscal years beginning after June
15, 2005. Alpha Innotech is currently evaluating the impact of this statement on
its consolidated financial statements.

         In January 2003, the FASB issued FASB Interpretation No. 46 ("FIN 46"),
"Consolidation of Variable Interest Entities,  an Interpretation of ARB No. 51."
FIN 46 requires  certain  variable  interest  entities to be consolidated by the
primary  beneficiary of the entity if the equity  investors in the entity do not
have the  characteristics  of a  controlling  financial  interest or do not have
sufficient  equity at risk for the  entity to  finance  its  activities  without
additional  subordinated  financial  support  from  other  parties.  FIN  46  is
effective immediately for all new variable interest entities created or acquired
after January 31, 2003. For variable interest entities created or acquired prior
to February 1, 2003, the provisions of FIN 46


                                       56



must be applied for the first interim or annual period  beginning after June 15,
2003.  Alpha  Innotech  does not have any  ownership  in any  variable  interest
entities as of December 31, 2003.  Alpha  Innotech will apply the  consolidation
requirement  of FIN 46 in future  periods  if it should  own any  interest  in a
variable interest entity.

         In May 2003,  the FASB  issued SFAS No.  150,  "Accounting  for Certain
Financial Instruments with Characteristics of both Liabilities and Equity." SFAS
No.  150  establishes  standards  for  how an  issuer  classifies  and  measures
financial  instruments with characteristics of both debt and equity and requires
an issuer to classify the following  instruments  as  liabilities in its balance
sheet:  (1) a  financial  instrument  issued  in the  form  of  shares  that  is
mandatorily  redeemable and embodies an  unconditional  obligation that requires
the issuer to redeem it by  transferring  its assets at a specific or determined
date or upon an event  that is  certain to occur;  (2) a  financial  instrument,
other than an  outstanding  share,  that  embodies an  obligation to replace the
issuer's  equity  shares,  or is indexed to such  obligation,  and  requires the
issuer to settle the  obligation  by  transferring  assets;  and (3) a financial
instrument that embodies an unconditional obligation that the issuer must settle
by  issuing a  variable  number of equity  shares if the  monetary  value of the
obligation is based solely or predominantly on (a) a fixed monetary amount,  (b)
variations in something other than fair value of the issuer's equity shares,  or
(c)  variations  inversely  related to changes in the fair value of the issuer's
equity shares.

         In November 2003, the FASB issued FASB Staff Position No. 150-3,  which
deferred the  effective  dates of applying  certain  provisions  of SFAS No. 150
related to mandatorily  redeemable  financial  instruments of certain  nonpublic
entities and certain mandatorily redeemable  noncontrolling interests for public
and nonpublic entities.

         For  public  entities,  SFAS  No.  150  is  effective  for  mandatorily
redeemable financial instruments entered into or modified after May 31, 2003 and
is effective for all other financial  instruments as of the first interim period
beginning after June 15, 2003.

         For mandatorily redeemable noncontrolling interests that would not have
to be classified as liabilities by a subsidiary under the exception in paragraph
9 of SFAS No. 150, but would be classified  as  liabilities  by the parent,  the
classification  and  measurement   provisions  of  SFAS  No.  150  are  deferred
indefinitely.  For other mandatorily  redeemable  noncontrolling  interests that
were issued before November 5, 2003, the measurement  provisions of SFAS No. 150
are deferred indefinitely.  For those instruments,  the measurement guidance for
redeemable shares and  noncontrolling  interests in other literature shall apply
during the deferral period.

         The  adoption  of SFAS  No.  150 did  not  have  any  impact  on  Alpha
Innotech's consolidated financial statements.


                                       57



                    UNAUDITED PRO FORMA FINANCIAL STATEMENTS

         The following  unaudited pro forma  consolidated  financial  statements
give effect to the reverse acquisition of Alpha Innotech by Xtrana and are based
on the  estimates  and  assumptions  set forth  herein  and in the notes to such
statements.

         On December 14, 2004, Xtrana and Alpha Innotech entered into the Merger
Agreement.  Pursuant to the Merger Agreement and proposed corporate  resolutions
the following will occur:

         o        Immediately  prior to the  completion of the proposed  reverse
                  acquisition, Xtrana will effect a reverse stock split pursuant
                  to which ten shares of Xtrana's  outstanding common stock will
                  be exchanged  for one new share of common  stock  resulting in
                  approximately 1,653,000 shares being outstanding.

         o        Each share of Alpha Innotech common and preferred stock issued
                  and outstanding at the closing of the merger will be converted
                  into  shares  of  the  newly   issued   Xtrana   common  stock
                  (approximately 8,072,000 shares).

         o        Xtrana's  wholly-owned  subsidiary AIC Merger Corporation will
                  merge with and into Alpha Innotech.

         o        Alpha Innotech will be the surviving corporation.

         o        The separate  existence  of Xtrana and AIC Merger  Corporation
                  will end.

         o        Immediately  after  the  completion  of the  proposed  reverse
                  acquisition  Xtrana will  change  it's name to Alpha  Innotech
                  Corp.

         The transaction is being  accounted for as a reverse  acquisition and a
recapitalization. Alpha Innotech is the acquirer for accounting purposes.

         The following  unaudited pro forma consolidated  financial  information
gives effect to the above.  The unaudited pro forma  financial  information  was
prepared from (1) Xtrana's audited historical  financial  statements included in
Xtrana's  Form  10-KSB  for the year  ended  December  31,  2004,  (2)  Xtrana's
unaudited  historical  financial  statement  included in Xtrana's 10-QSB for the
period ended March 31, 2005, (3) Alpha Innotech's audited  historical  financial
statements for the year ended December 31, 2004 included elsewhere in this Proxy
Statement, and (4) Alpha Innotech's unaudited historical financial as of and for
the  three  months  ended  March  31,  2005  included  elsewhere  in this  Proxy
Statement.

         The  unaudited pro forma  consolidated  balance sheet at March 31, 2005
assumes the effects of the above took place as of March 31, 2005.

         The unaudited pro forma consolidated  statement of operations  combines
the  historical  statement of  operations  of Xtrana and Alpha  Innotech for the
twelve months ended  December 31, 2004.  The  unaudited  pro forma  consolidated
statement of  operations  combines the  historical  statement of  operations  of
Xtrana  and Alpha  Innotech  for the three  months  ended  March 31,  2005.  The
unaudited  pro forma  consolidated  statements  of  operations  assume  that the
effects of the above took place as of January 1, 2004.

         The unaudited pro forma consolidated financial information is presented
for  illustrative  purposes  only  and  is  not  necessarily  indicative  of the
operating  results  or  financial  position  that  would  have  occurred  if the
transaction had been consummated at the dates  indicated,  nor is it necessarily
indicative  of  the  future  operating  results  of  financial  position  of the
consolidated companies.


                                       58




                  UAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET
                              AS OF MARCH 31, 2005


                                                             Historical                           Pro Forma
                                                        -------------------      --------------------------------------------
                                                         Alpha                  Conversion
                                                        Innotech    Xtrana,        of                      Restate    Consoli-
                                                      Corporation     Inc.      Preferred     Merger       Capital     dated
                                                         -------    -------      -------      -------      -------    -------
                                                                                   (in thousands)
                                                                                                    
ASSETS

Current assets:                     
      Cash and cash equivalents ......................       142      2,270           --           --           --      2,412
      Accounts receivable, net .......................     1,571         --           --           --           --      1,571
      Inventory, net .................................       718         --           --           --           --        718
      Prepaid expenses and other current assets ......       108         55           --           --           --        163
                                                         -------    -------      -------      -------      -------    -------

          Total current assets .......................     2,539      2,325           --           --           --     4,864

Property and equipment, net ..........................     1,292         --           --           --           --      1,292

Other assets .........................................        80         --           --           --           --        80
                                                         -------    -------      -------      -------      -------    -------

          Total assets ...............................     3,911      2,325           --           --           --      6,236
                                                         =======    =======      =======      =======      =======    =======


LIABILITIES, REDEEMABLE CONVERTIBLE
      PREFERRED STOCK AND SHAREHOLDERS'
      EQUITY

Current liabilities:
      Accounts payable ...............................     1,833         16           --           --           --      1,849
      Accrued liabilities ............................     1,037        100           --           --           --      1,137
      Debt ...........................................     1,609         --           --(2)      (500)          --      1,109
      Deferred revenue ...............................       579         --           --           --           --        579
      Other liabilities ..............................       189         --           --           --           --        189
                                                         -------    -------      -------      -------      -------    -------

          Total current liabilities ..................     5,247        116           --         (500)          --      4,863
                                                         -------    -------      -------      -------      -------    -------

Commitments and contingencies ........................        --         --           --           --           --         --
                                                         -------    -------      -------      -------      -------    -------

Redeemable convertible preferred stock:
      Series A preferred stock .......................    10,445         --(1)   (10,445)          --           --         --
      Series A-1 preferred stock .....................     2,226         --(1)    (2,226)          --           --         --
                                                         -------    -------      -------      -------      -------    -------

          Total redeemable convertible preferred stock    12,671         --      (12,671)          --           --         --
                                                         -------    -------      -------      -------      -------    -------

Shareholders' equity:
      Common stock ...................................     1,147        165(1)    12,671(2)      (165)(3)  (13,271)        97
      Additional paid-in capital .....................        --     19,446           --(2)   (16,737)(3)   13,271     16,430
      Accumulated deficit ............................   (15,154)   (18,574)          --(2)    18,574           --    (15,154)
      Retained earnings during development stage .....        --      1,172           --(2)    (1,172)          --         --
                                                         -------    -------      -------      -------      -------    -------

          Total shareholders' equity .................   (14,007)     2,209       12,671          500           --      1,373
                                                         -------    -------      -------      -------      -------    -------

          Total liabilities, redeemable convertible
              preferred stock and shareholders'
              equity .................................     3,911      2,325           --           --           --      6,236
                                                         =======    =======      =======      =======      =======    =======



                                       59




            UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS
                    FOR THE THREE MONTHS ENDED MARCH 31, 2005



                                                       Historical                       Pro Forma
                                                  -------------------    ----------------------------------------
                                                   Alpha                Conversion
                                                  Innotech    Xtrana,      of                  Restate    Consoli-
                                                Corporation     Inc.    Preferred   Merger     Capital     dated 
                                                   -------    -------    -------    -------    -------    -------
                                                                           (in thousands)
                                                                                          
Revenue:
      Products .................................     2,505         --         --         --         --      2,505
                                                   -------    -------    -------    -------    -------    -------

          Total revenue ........................     2,505         --         --         --         --      2,505
                                                   -------    -------    -------    -------    -------    -------

Cost of sales:
      Products .................................     1,405         --         --         --         --      1,405
                                                   -------    -------    -------    -------    -------    -------

          Total cost of sales ..................     1,405         --         --         --         --      1,405
                                                   -------    -------    -------    -------    -------    -------

              Gross profit .....................     1,100         --         --         --         --      1,100
                                                   -------    -------    -------    -------    -------    -------

Operating expenses:
      Sales and marketing ......................     1,061         --         --         --         --      1,061
      Research and development .................       397         --         --         --         --        397
      General and administrative ...............       285         95         --(2)     (95)        --        285
                                                   -------    -------    -------    -------    -------    -------

          Total operating expenses .............     1,743         95         --        (95)        --      1,743
                                                   -------    -------    -------    -------    -------    -------

              Loss from operations .............      (643)       (95)        --         95         --       (643)
                                                   -------    -------    -------    -------    -------    -------

Other income (expense):
      Interest expense .........................       (43)        --         --         --         --        (43)
      Other income (expense), net ..............        (2)         9         --(2)      (9)        --         (2)
                                                   -------    -------    -------    -------    -------    -------

          Total other income (expense) .........       (45)         9         --         (9)        --        (45)
                                                   -------    -------    -------    -------    -------    -------

              Net loss .........................      (688)       (86)        --         86         --       (688)

Accretions on preferred stock ..................      (217)        --(1)     217         --         --         --
                                                   -------    -------    -------    -------    -------    -------

      Net loss applicable to common stockholders      (905)       (86)       217         86          0       (688)
                                                   =======    =======    =======    =======    =======    =======

Basic and diluted net loss per share ...........     (0.11)     (0.05)        --         --         --      (0.07)
                                                   =======    =======    =======    =======    =======    =======

Number of shares used in computing basic and
      diluted net loss per share ...............     8,072      1,653         --         --         --      9,725
                                                   =======    =======    =======    =======    =======    =======



                                       60




            UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 2004


                                                       Historical                       Pro Forma
                                                  -------------------    ----------------------------------------
                                                   Alpha                Conversion
                                                  Innotech    Xtrana,      of                  Restate    Consoli-
                                                Corporation     Inc.    Preferred   Merger     Capital     dated 
                                                   -------    -------    -------    -------    -------    -------
                                                                           (in thousands)
                                                                                         
Revenue:    
      Products .................................    10,511         --         --         --         --     10,511
      Grants ...................................        --        102         --(2)    (102)        --         --
                                                   -------    -------    -------    -------    -------    -------

          Total revenue ........................    10,511        102         --       (102)        --     10,511
                                                   -------    -------    -------    -------    -------    -------

Cost of sales:
      Products .................................     5,378         --         --         --         --      5,378
      Grants ...................................        --         79         --(2)     (79)        --         --
                                                   -------    -------    -------    -------    -------    -------

          Total cost of sales ..................     5,378         79         --        (79)        --      5,378
                                                   -------    -------    -------    -------    -------    -------

              Gross profit .....................     5,133         23         --        (23)        --      5,133
                                                   -------    -------    -------    -------    -------    -------

Operating expenses:
      Sales and marketing ......................     3,925         --         --         --         --      3,925
      Research and development .................     1,963         99         --(2)     (99)        --      1,963
      General and administrative ...............     1,968      1,492         --(2)  (1,492)        --      1,968
                                                   -------    -------    -------    -------    -------    -------

          Total operating expenses .............     7,856      1,591         --     (1,591)        --      7,856
                                                   -------    -------    -------    -------    -------    -------

              Loss from operations .............    (2,723)    (1,568)        --      1,568         --     (2,723)
                                                   -------    -------    -------    -------    -------    -------

Other income (expense):
      Interest expense .........................      (574)        --         --         --         --       (574)
      Other income (expense), net ..............        (1)        16         --(2)     (16)        --         (1)
      Reserve for loss on note receivable ......        --       (500)        --(2)     500         --         --
      Gain on sale of intellectual property ....        --      3,310         --(2)  (3,310)        --         --
                                                   -------    -------    -------    -------    -------    -------

          Total other income (expense) .........      (575)     2,826         --     (2,826)        --       (575)
                                                   -------    -------    -------    -------    -------    -------

              Net loss .........................    (3,298)     1,258         --     (1,258)        --     (3,298)

Accretions on preferred stock ..................      (704)        --(1)     704         --         --         --
                                                   -------    -------    -------    -------    -------    -------

      Net loss applicable to common stockholders    (4,002)     1,258        704     (1,258)        --     (3,298)
                                                   =======    =======    =======    =======    =======    =======

Basic and diluted net loss per share ...........     (0.50)      0.76         --         --         --      (0.34)
                                                   =======    =======    =======    =======    =======    =======

Number of shares used in computing basic and
      diluted net loss per share ...............     8,072      1,653         --         --         --      9,725
                                                   =======    =======    =======    =======    =======    =======



                                       61



         NOTE TO UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

1.       Accounting treatment applied as a result of this merger

         The  transaction is being  accounted for as a reverse  acquisition  and
recapitalization. Alpha Innotech is the acquirer for accounting purposes. Xtrana
is the issuer.  The  historical  financial  statements  for periods prior to the
acquisition  become  those  of  acquirer.  In  a  recapitalization,   historical
stockholders'  equity  of the  acquirer  prior to the  merger  is  retroactively
restated for the equivalent number of shares received in the merger after giving
effect to any difference in par value of the issuer's and acquirer's  stock with
an offset to additional paid-in capital.  Accumulated deficit of the acquirer is
carried forward after the acquisition.  Operations prior to the merger are those
of the  accounting  acquirer.  Earnings  per share for the periods  prior to the
merger are restated to reflect the equivalent number of shares outstanding.

2.       Shares  issued and  outstanding  prior to the  merger,  as of March 31,
         2005, were as follows: 

         Xtrana:
             Common Stock                                             16,533,269

         Alpha Innotech Corporation:
             Series A Redeemable Convertible Preferred Stock          10,533,334
             Series A-1 Redeemable Convertible Preferred Stock         7,343,418
             Common Stock                                             23,179,286

3.       The following is a reconciliation of the shares used in calculating the
         per share information as of March 31, 2005:

                         Type          Original                      Number
                          Of            Shares      Conversion         Of
      Entity             Stock        Outstanding     Factor         Shares
-------------------   ------------    -----------   ----------     -----------

Xtrana                Common          16,533,269     .10             1,653,327
                                                                   -----------

Alpha Innotech        Series A        10,533,334     .3033634        3,195,428

Alpha Innotech        Series A-1       7,343,418     .3033634        2,227,724

Alpha Innotech        Common          23,179,287     .1142909        2,649,182
                                                                   -----------

   Alpha Innotech                                                    8,072,334
                                                                   -----------

     Total                                                           9,725,661
                                                                   ===========


                                       62



4.       The following is a reconciliation of the shares used in calculating the
         per share information as of December 31, 2004:

                         Type          Original                      Number
                          Of            Shares      Conversion         Of
      Entity             Stock        Outstanding     Factor         Shares
-------------------   ------------    -----------   ----------     -----------

Xtrana                Common          16,533,269     .10             1,653,327
                                                                   -----------

Alpha Innotech        Series A        10,533,334     .3033634        3,195,428

Alpha Innotech        Series A-1       7,343,418     .3033634        2,227,724

Alpha Innotech        Common          23,177,526     .1142909        2,648,980
                                                                   -----------

   Alpha Innotech                                                    8,072,132
                                                                   -----------

     Total                                                           9,725,459
                                                                   ===========


5.       Adjustments to unaudited pro forma consolidated balance sheet

         The adjustments to the unaudited pro forma  consolidated  balance sheet
         as of March 31, 2005 have been calculated as if the reverse acquisition
         occurred on that date and are as follows:

         (1)      To reflect the conversion of Alpha Innotech's  preferred stock
                  in to Xtrana's common stock.

         (2)      To reflect the conversion of Alpha Innotech's  common stock in
                  to Xtrana's  commons stock,  the  elimination of  intercompany
                  transactions, and the reverse acquisition.

         (3)      To reflect the revised amounts for common stock and additional
                  paid-in capital subsequent to the reverse acquisition.

6.       Adjustments  to the  unaudited  pro forma  consolidated  statements  of
         operations

         The adjustments to the unaudited pro forma  consolidated  statements of
         operations  for the periods ended  December 31, 2004 and March 31, 2005
         have been  calculated  as if the merger  occurred as of January 1, 2004
         and are as follows:

         (1)      To eliminate accretion on preferred stock.

         (2)      To  eliminate  the  operations  of  Xtrana,  which will not be
                  supported after the reverse merger.


                                       63



BOOK VALUE PER SHARE

            The  following  table  sets  forth the book  value per share data of
Alpha Innotech Corporation and Xtrana at the dates set forth. The information in
the table below should be read in conjunction with the Alpha Innotech and Xtrana
consolidated  financial  statements and pro forma financial statements and notes
thereto  included  elsewhere in this proxy statement or  incorporated  herein by
reference.

                                                     December 31,      March 31,
                                                         2004            2005
                                                       --------        -------- 
Xtrana - Historical
------------------------------------------------
Total stockholders' equity .....................       $  2,295        $  2,209
Shares outstanding .............................         16,533          16,533
         Book value per share ..................       $   0.14        $   0.13

Alpha Innotech - Historical
------------------------------------------------
Total stockholders' equity .....................       $(13,102)       $(14,007)
Shares outstanding .............................         23,178          23,179
         Book value per share ..................       $  (0.57)       $  (0.60)

Xtrana and Alpha Innotech - Pro Forma
------------------------------------------------
Total stockholders' equity .....................       $  2,147        $  1,373
Shares outstanding .............................          9,725           9,726
         Book value per share ..................       $   0.22        $   0.14


                                       64



                     MANAGEMENT OF THE SURVIVING CORPORATION

DIRECTORS AND EXECUTIVE OFFICERS

         The  following  table  sets  forth  information,  as of June 30,  2005,
regarding those  individuals who will serve as directors and executive  officers
of the surviving corporation after the Merger.

        NAME                 AGE                    POSITION
        ----                 ---                    --------
 Michael D. Bick, Ph.D.       60     Director
 James H. Chamberlain         57     Director
 Nagesh Mhatre, Ph.D.         72     Director
 Haseeb Chaudhry              39     Chief Executive Officer and Director
 Darryl Ray, Ph.D.            53     President, Acting Chief Accounting Officer,
                                     Chief Operating Officer and Director
 William Snider               35     Director

         For  biographical  information  of our current  directors and executive
officers,  see "PROPOSAL NO. 1: ELECTION OF DIRECTORS;  Information with Respect
to each Director, Nominee and Certain Officers."

         HASEEB CHAUDHRY,  co-founded Alpha Innotech and became its director and
Chief Executive Officer in 1992. Mr. Chaudhry has over 14 years of experience in
strategic  planning,  business  development,  sales and  marketing  and managing
technology and application  development.  Prior to founding Alpha Innotech,  Mr.
Chaudhry was involved with a start-up biotech company, American Synthesis, where
he sold  and  marketed  customized  oligonucleotides,  reagents,  chemicals  and
scientific  instruments.  Mr.  Chaudhry  has  participated  in various  start-up
ventures in retail,  industrial services and international  training. He holds a
BA in Genetics from the University of California, Berkeley.

         DARRYL RAY,  PHD,  co-founded  Alpha  Innotech and became its director,
President  and Chief  Operations  Officer  in 1992 and Acting  Chief  Accounting
Officer in 2005.  Prior to  founding  Alpha  Innotech,  Dr. Ray was  Director of
Technical Affairs at American Synthesis, overseeing development,  manufacturing,
and  Quality  Assurance  of  the  oligonucleotides  manufacturing  facility  and
development of a variety of new instruments for Life Science research.  Prior to
American Synthesis, Dr. Ray was involved in the development of diagnostic,  R&D,
and  research  instruments  at American  Bionetics  (ABN) and Hoefer  Scientific
Instruments (now Harvard  Bioscience).  Dr. Ray received his PhD in Cell Biology
from the University of California, Santa Barbara.

         NAGESH S. MHATRE,  PH.D.  has been a director of Alpha Innotech and the
Executive  Chairman since 2001. Dr. Mhatre is currently an executive chairman of
BioImagene.  Dr.  Mhatre has over 40 years of senior  management  experience  in
international medical technology companies, including Miles Laboratories (Bayer,
AG.) and Becton Dickinson & Company. While at Becton Dickinson, he served for 13
years as corporate vice president and president of its  Immunocytometry  Systems
Division.  Prior to this, he was for three years  President of Becton  Dickinson
Laboratory  Products,  Europe, in Grenoble,  France. At Miles  Laboratories,  he
served for four years as managing director,  Miles-Yeda,  in Rehovot,  Israel, a
joint  venture with the Weizmann  Institute  of Science.  Dr.  Mhatre has been a
member of the Boards of Governors of Silicon  Valley  Capital  Club,  Heidelberg
International  Club,  San  Francisco,  CA. and Friends of Weizmann  Institute of
Science.  He serves as a Trustee  on the  Board of World  Affairs  Council,  San
Francisco.  Dr. Mhatre is a charter member and membership  chair (1998-9) of The
Indus Entrepreneur-TiE  Silicon Valley. Dr. Mhatre received his B.S. degree from
Bombay University,  India, an MS degree from Oregon State University and a Ph.D.
in biochemistry/microbiology from Rutgers University.


                                       65



         WILLIAM  SNIDER,  CFA has been a member  of Alpha  Innotech's  board of
directors since 2002. Mr. Snider is a general partner and co-founder of Emerging
Technology Partners, LLC. Prior to ETP he was a mutual fund portfolio manager at
T. Rowe  Price.  Mr.  Snider  joined T. Rowe Price in 1991 after  attending  the
Wharton  School.  Shortly  thereafter he became the youngest vice  president and
portfolio manager in the firm's 60+ year history. His responsibilities  included
managing $2 billion of mutual fund and institutional client portfolios.

BOARD OF DIRECTORS AND COMMITTEES

         The  board of  directors  will  consist  of seven  members  immediately
following the  consummation of the Merger.  The board of directors will maintain
an audit committee and a compensation committee.

         The  audit   committee   will   oversee  the  work  of  the   surviving
corporation's  auditors with respect to financial and  accounting  matters.  The
function   of  the   compensation   committee   will  be  to  review   and  make
recommendations  with  respect to  compensation  of  executive  officers and key
employees.


                      MARKET PRICE AND DIVIDEND INFORMATION

XTRANA

         Our common stock  currently  trades on the OTCBB under the symbol XTRN.
The following  sets forth the high and low trade prices for our common stock for
the periods  indicated as reported by the OTCBB. The quotations  provided by the
OTCBB  reflect  inter-dealer  prices,   without  retail  mark-up,   markdown  or
commission  and may not  represent  actual  transactions.  We have  not paid any
dividends since our inception and do not contemplate payment of dividends in the
foreseeable future.

                                            2004                 2003
                                      -----------------   -----------------
                                        HIGH      LOW       HIGH      LOW   
                                      -------   -------   -------   -------

         First quarter ........       $ 0.220   $ 0.090   $ 0.210   $ 0.100

         Second quarter .......         0.220     0.110     0.300     0.090

         Third quarter ........         0.220     0.160     0.220     0.100

         Fourth quarter .......         0.230     0.150     0.180     0.090

(a)      On June 30, 2005,  the  closing  trade  price of our common  stock,  as
         reported by the OTCBB, was $0.155.

(b)      As of March 16, 2005, we had 223 holders of record of our common stock.
         A  large  number  of  shares  are  held in  nominee  name.  Based  upon
         information provided by our transfer agent, American Stock Transfer and
         Trust Company,  we had approximately  2,492 beneficial  stockholders on
         the same date.

DIVIDENDS

         We have never paid  dividends on our common stock.  We intend to retain
any future earnings for use in our business.


                                       66



ALPHA INNOTECH

         The securities of Alpha Innotech have not been admitted to trading on a
securities exchange and no market exists for such securities. Alpha Innotech has
not paid any cash dividends  since  inception and has no present plans to do so.
Based on  information  supplied by Alpha  Innotech,  as of June 30, 2005,  Alpha
Innotech had approximately 34 stockholders of record.


                                       67



                                 PROPOSAL NO. 3:
               TO AMEND THE COMPANY'S CERTIFICATE OF INCORPORATION
                      TO PROVIDE FOR A REVERSE STOCK SPLIT

         In connection  with the Merger,  our Board of Directors has unanimously
approved  a  proposal  to amend our  Certificate  of  Incorporation  to effect a
one-for-ten  (1-for-10)  reverse  stock split of our common stock subject to the
approval of such action by the stockholders. A copy of the proposed amendment to
our  Certificate  of  Incorporation  is  attached  hereto  as  APPENDIX  D  (the
"Certificate of Amendment").

         The  proposed  reverse  stock split will take effect,  if at all,  only
after it is approved by you, after the Board of Directors determines that we are
prepared to consummate the Merger,  and the Certificate of Amendment is accepted
for filing by the  Secretary of State of the State of Delaware.  We expect that,
if the proposal is approved by you, the  Certificate  of Amendment will be filed
immediately  prior  the  effective  time of the  Merger.  If the  Merger  is not
approved by the  stockholders  at the Annual Meeting or is not completed for any
other  reason,  then the  Certificate  of  Amendment  will not be filed  and the
reverse  stock split will not be effected.  In addition,  our Board of Directors
may elect not to file, or to delay the filing of, the  Certificate  of Amendment
if they determine that filing the  Certificate of Amendment  would not be in the
best  interest  of  our  stockholders.  We are  currently  authorized  to  issue
50,000,000  shares of common  stock.  If the Merger is completed and the reverse
stock split  effected,  there  would be  approximately  9,725,809  shares of our
common stock outstanding immediately following these transactions.

         If  the  reverse  stock  split  is  approved  by the  stockholders  and
implemented by the Board of Directors, each ten shares of our outstanding common
stock on the effective  date (the "Old Common Stock") of the reverse stock split
(the "Reverse Split Effective Date") will be automatically changed into and will
become one share of our New Common Stock (the "New Common Stock"). Any resulting
fractional  shares  will not be  issued.  Stockholders  entitled  to  receive  a
fractional  share as a result of the reverse split will instead receive from the
Company a whole  share of New Common  Stock.  The  reverse  stock split will not
change the current per share par value of our common stock or change the current
number of our  authorized  shares of common stock.  The Reverse Split  Effective
Date will be the date the Certificate of Amendment is accepted for filing by the
Delaware  Secretary  of State,  provided  in any event  that the  Reverse  Split
Effective  Date  will be prior to the  closing  of the  Merger as  described  in
Proposal  No.  2, if any.  Following  the  reverse  stock  split,  we will  have
approximately 1,653,400 shares of our common stock outstanding, excluding shares
to be issued in the Merger with Alpha  Innotech and assuming there is no further
issuance of our common  shares  prior to the  Effective  Date.  The price of any
options to purchase our common stock that are  outstanding  on the Reverse Split
Effective Date will be adjusted in proportion to the reverse split.

         This  proposal  is  a  condition  to  the  Merger  as  described   more
specifically  under Proposal  Number 3. As such, if the proposal is not approved
the Merger may not be  completed.  Conversely,  if the Merger does not  proceed,
then the reverse stock split will not occur.

REASON FOR THE REVERSE STOCK SPLIT

         Pursuant  to the  terms of the  Merger  Agreement,  we will be  issuing
shares  of our  common  stock as  consideration  for the  Merger.  Our  Board of
Directors has reviewed our current  business and financial  performance  and the
recent  trading range of our common stock,  as well as the current  business and
financial  performance  of Alpha  Innotech.  Based on that review the Board then
determined  that a reverse  stock  split was  desirable  in order to achieve the
following  benefits  following the Merger,  each of which is described  below in
more detail: 


                                       68



         -        encourage  greater  investor  interest in our common  stock by
                  making the stock price more  attractive to the many  investors
                  who refrain from investing in lower-priced stocks; and

         -        reduce trading fees and commissions  incurred by stockholders,
                  since  these  costs are based to some  extent on the number of
                  shares traded.

ENCOURAGE GREATER INVESTOR INTEREST IN OUR COMMON STOCK

         The Board of  Directors  believes  that the  reverse  stock  split will
encourage greater interest in our common stock by the investment community.  The
Board of Directors  believes  that the current  market price of our common stock
may impair its acceptability to institutional investors,  professional investors
and  other  members  of the  investing  public.  Many  institutional  and  other
investors look upon stock trading at low prices as unduly  speculative in nature
and, as a matter of policy,  avoid  investing in such stocks.  Further,  various
brokerage  house  policies and practices tend to discourage  individual  brokers
from dealing in low-priced  stocks.  If effected,  the reverse stock split would
reduce the number of  outstanding  shares of our common stock,  and the Board of
Directors anticipates that the trading price of our common stock would increase.
The Board of Directors  believes  that  raising the trading  price of our common
stock will  increase the  attractiveness  of the common stock to the  investment
community and possibly promote greater liquidity for our existing  stockholders.

REDUCE TRADING FEES AND COMMISSIONS INCURRED BY STOCKHOLDERS

         Because broker  commissions on low-priced stocks generally  represent a
higher  percentage of the stock price than commissions on higher-priced  stocks,
the current share price of our common stock, in the absence of the reverse stock
split,  may continue to result in  individual  stockholders  paying  transaction
costs (commissions, markups or markdowns) which are a higher percentage of their
total share  value than would be the case if the stock  price was  substantially
higher.  This  factor may  further  limit the  willingness  of  institutions  to
purchase our common stock at its current market price. In addition,  the reverse
stock  split  could  result in more  stockholders  holding  odd lots of  shares.
Trading in odd lots  generally  increases  brokerage  fees for such trades,  and
therefore the reverse  stock split could have the effect of increased  brokerage
fees.

         Our  Board of  Directors  also  took  into  consideration  a number  of
negative  factors  associated  with reverse stock  splits,  such as the negative
perception  of reverse stock splits held by many  investors,  analysts and other
stock market  participants.  For example,  in recent years many companies  whose
shares are listed on national stock exchanges have implemented reverse splits in
order to increase their per share trading price and therefore  continuing  their
listing, to avoid classification as a penny stock, or to simply make their stock
more attractive to institutional investors. As a result some participants in the
market may view a reverse stock split in a negative light. This perception could
reduce the demand for the shares and thereby reduce the value of the shares held
by the stockholders.  The Board, however, determined that these negative factors
were outweighed by the intended benefits described above.

         There can be no assurance  that the reverse  stock split will result in
the benefits described above.  Specifically,  there can be no assurance that the
market price of our common stock  immediately  after the  effective  date of the
proposed reversed stock split would be maintained for any period of time or that
such market  price would  approximate  ten times the market  price of our common
stock before the reverse  stock split.  There can also be no assurance  that the
reverse  stock split will not further  adversely  impact the market price of our
common stock.

PENNY STOCK STATUS

         Our  common  stock  currently  trades for less than $5.00 per share and
therefore it is considered a "penny  stock" under the rules and the  regulations
of the Securities Act of 1933. The regulatory


                                       69



requirements  relating  to penny  stocks  generally  requires  market  makers to
provide  additional  disclosure to buyers at the time of purchase.  This process
can effectively  reduce the liquidity of Penny Stocks. In addition,  higher fees
are generally charged by broker-dealers in connection with the purchase and sale
of penny stocks.  Despite the reverse stock split management  expects our common
stock to retain its  classification as a penny stock  immediately  following the
reverse stock split and the other  transactions  discussed herein,  assuming the
approval of all proposals presented at the meeting.

SHARE CERTIFICATES AND FRACTIONAL SHARES

         The  reverse  split  will  occur on the  filing of the  Certificate  of
Amendment  with the Delaware of State without any further  action on the part of
our stockholders  and without regard to the date or dates on which  certificates
representing shares of old common stock are actually  surrendered by each holder
thereof  for  certificates  representing  the number of shares of the New Common
Stock that the  stockholder  is  entitled  to receive  as a  consequence  of the
reverse split. On the effective date of the amendment,  the certificates held by
the  stockholders  will be deemed to represent one share of New Common Stock for
each two shares of old common stock indicated on such certificate.  As described
more  fully  in  the  paragraph  below  under  the  heading  Exchange  of  Stock
Certificates,  certificates  representing  shares of New  Common  Stock  will be
issued  in  due  course  as  old  certificates  are  tendered  for  exchange  or
transferred to the transfer agent.

FRACTIONAL SHARES

         No fractional  shares of common stock will be issued as a result of the
reverse stock split. In lieu of receiving  fractional shares, all such fractions
shall be rounded up so that you will receive one whole share for each fractional
share to which you would otherwise be entitled.

EXCHANGE OF STOCK CERTIFICATES

         As  soon  as  practicable  after  the  effectiveness  of  the  proposed
amendment,  holders  of our common  stock  will be  notified  and  requested  to
surrender  their  certificates  representing  shares of Old Common  Stock to our
corporate secretary and transfer agent in exchange for certificates representing
New  Common  Stock.  Beginning  on  the  date  the  proposed  amendment  becomes
effective,  each certificate representing shares of our Old Common Stock will be
deemed for all corporate purposes to evidence ownership of as many shares of New
Common  Stock after  applying the split and  otherwise  making  adjustments  for
fractional shares described above.  Until surrendered to the Transfer Agent, old
certificates  retained by stockholders will be deemed for all purposes including
voting and payment of dividends, if any, to represent the number of whole shares
of New Common  Stock to which its  stockholders  are entitled as a result of the
reverse split.

         You should not send your old certificate(s) to the transfer agent until
after you are notified that the reverse split is effective. Shares of Old Common
Stock  surrendered  after the  effective  date will be replaced by  certificates
representing  shares  of New  Common  Stock  as soon as  practicable  after  the
surrender.  No service  charge  will be paid by  existing  stockholders  for the
exchange of the shares and the Company will pay all expenses of the exchange and
issuance of new certificates.

         The  following  table  provides  additional  information  regarding the
estimated  number of shares of common stock of the Company  before and after the
reverse  stock split,  assuming that  16,533,269  shares of our common stock are
outstanding immediately prior to the Merger:


                                       70



                                                       REVERSE STOCK SPLIT
                                                      ----------------------
                                                        BEFORE        AFTER
                                                      ----------    ---------

Number of Shares Issued and Outstanding ............  16,533,269    1,653,327

Number of shares reserved for issuance for a
specific purpose ...................................   1,715,389      171,539

Number of shares that will be issued and Outstanding
assuming all other proposals are consummated .......        --(1)   9,725,809(2)

Number of shares that will be reserved for issuance
if all other proposals contained herein are
consummated ........................................        --(1)   1,798,620

Number of authorized but unissued and unreserved
shares if all the other proposals contained herein
are consummated ....................................        --(1)  38,475,571

(1)      No shares  will be issued  pursuant  to the other  proposals  contained
         herein unless and until the reverse stock split is effected.

(2)      Consists of 1,653,327  outstanding  shares of Xtrana  common stock plus
         the  following  shares  issuable in the Merger:  (i)  2,649,330  Xtrana
         shares issuable in exchange for 23,180,587  outstanding shares of Alpha
         Innotech  Common  Stock,  (ii)  3,195,428  Xtrana  shares  issuable  in
         exchange for 10,533,334  outstanding  shares of Alpha Innotech Series A
         Preferred Stock and (iii) 2,227,724  Xtrana shares issuable in exchange
         for 7,343,418 outstanding shares of Alpha Innotech Series A-1 Preferred
         Stock.

FEDERAL INCOME TAX CONSEQUENCES OF THE REVERSE SPLIT

         The  following   description   of  the  material   federal  income  tax
consequences of the reverse stock split is based upon the Internal Revenue Code,
the applicable Treasury Regulations promulgated  thereunder,  judicial authority
and current administrative rulings and practices all as in effect on the date of
this proxy  statement.  Changes to these laws could  alter the tax  consequences
described below,  possibly with retroactive  effect. We have not sought and will
not seek an opinion of counsel or a ruling  from the  Internal  Revenue  Service
regarding the federal income tax  consequences of the reverse stock split.  This
discussion is for general  information  only and does not consider  consequences
which may apply to special classes of taxpayers (for example,  foreign  persons,
dealers in securities,  tax-exempt  organizations,  broker-dealers  or insurance
companies)  and does not  discuss  the tax  consequences  under  the laws of any
foreign,  state or local jurisdictions.  Stockholders are urged to consult their
own tax advisors to determine the particular tax consequences to them.

         We believe that  because the reverse  stock split is not part of a plan
to increase any stockholder's  proportionate  interest in our assets or earnings
and  profits,  the reverse  stock split will likely have the  following  federal
income tax effects: Stockholders who receive New Common Stock solely in exchange
for their Old Common  Stock  will not  recognize  gain or loss on the  exchange.
Consequently, the holding period of shares of New Common Stock will include your
holding  period for the shares of Old Common Stock,  provided that the shares of
common stock are held by you as a capital asset at the time of the exchange.  In
addition,  your aggregate basis of the New Common Stock will be the same as your
aggregate basis of the shares of Old Common Stock exchanged.  

YOU SHOULD CONSULT WITH YOUR OWN TAX ADVISOR ABOUT THE TAX  CONSEQUENCES  OF THE
REVERSE  SPLIT  IN  LIGHT  OF  YOUR  PARTICULAR  CIRCUMSTANCES,   INCLUDING  THE
APPLICATION OF ANY STATE, LOCAL OR FOREIGN TAX LAW. 


                                       71



NO APPRAISAL RIGHTS

         Under  Delaware  law,  you are not  entitled to  dissenter's  rights of
appraisal with respect to the amendment of the Certificate of Incorporation  and
the reverse stock split. 

AMENDMENT TO THE CERTIFICATE OF INCORPORATION

         Article IV of our Certificate of  Incorporation  will be amended as set
forth in the  Certificate  of  Amendment  attached  as  APPENDIX D to affect the
reverse split. At the effective date,  without further action on the part of the
Company or the  holders,  each  share of common  stock  will be  converted  into
one-tenth  (1/10) of a share of common stock.  The Certificate of Amendment will
be filed with the  Secretary of State of Delaware  and will become  effective on
the date of the filing.

RECOMMENDATION OF THE BOARD OF DIRECTORS

         For the above  reasons,  we believe that the reverse  stock split is in
our best interests and in the best interests of our  stockholders.  There can be
no  guarantee,  however,  that the market  price of our common  stock  after the
reverse  stock split will be equal to the market price before the reverse  stock
split  multiplied  by the split number,  or that the market price  following the
reverse stock split will either exceed or remain in excess of the current market
price.

REQUIRED VOTE

         The  affirmative  vote of a majority of the  outstanding  shares of our
common stock entitled to vote is required to approve the proposal to approve the
1-for-10 reverse stock split.

THE BOARD OF DIRECTORS  UNANIMOUSLY  RECOMMENDS  THAT  STOCKHOLDERS  APPROVE THE
AMENDMENT TO OUR CERTIFICATE OF INCORPORATION TO EFFECT A 1-FOR-10 REVERSE STOCK
SPLIT.


                                       72



                                 PROPOSAL NO. 4:
                 TO APPROVE THE AMENDMENT TO OUR CERTIFICATE OF
                        INCORPORATION TO CHANGE OUR NAME

         Our Board of Directors has approved a proposal to amend our Certificate
of  Incorporation  to change our name from "Xtrana,  Inc.",  to "Alpha  Innotech
Corp." following a successful completion of the Merger described in Proposal No.
2.

         This  proposal was  approved by the Board of  Directors in  conjunction
with the approval of the Merger  described under the heading Proposal No. 2, and
this proposal is a condition to that Merger.  We expect that, if the proposal is
approved  by you,  the name change  will be filed at the  effective  time of the
Merger.  If the  corporate  name change is approved by our  stockholders,  a new
trading symbol will be assigned to us by the OTC Bulletin  Board.  If the Merger
is not approved by the  stockholders  at the Annual  Meeting or is not completed
for any other reason, then the name change will not be implemented. In addition,
our Board of  Directors  may elect not to file,  or to delay the  filing of, the
corporate  name  change  if they  determine  that it  would  not be in the  best
interest of our stockholders.

         The Board of  Directors  has also  approved  the  Merger  described  in
Proposal  No. 2 and they have  recommended  that the  stockholders  approve that
Merger. As a result of the Merger,  if approved by our stockholders,  we will be
engaging  in  business  activities   unrelated  to  those  that  we  engaged  in
immediately  prior to the Merger.  Our Board of Directors  believes that the new
name,  "Alpha Innotech  Corp.",  will more  accurately  reflect our new business
activities.

REQUIRED VOTE

         The  affirmative  vote of a majority of the  outstanding  shares of our
common stock  entitled to vote is required to approve the proposal to change our
corporate  name. THE BOARD OF DIRECTORS  RECOMMENDS A VOTE "FOR" THE PROPOSAL TO
AMEND OUR CERTIFICATE OF INCORPORATION TO CHANGE OUR NAME.


                                       73



                                 PROPOSAL NO. 5:
                        ADJOURNMENT OF THE ANNUAL MEETING

         If at the Annual  Meeting,  the  number of shares of our  common  stock
present or  represented  and voting in favor of  approval  of the Merger and the
reverse  stock split and  corporate  name change  proposals is  insufficient  to
approve the those  proposals  under  Delaware  law, our  management  may move to
adjourn  the Annual  Meeting in order to enable our board to continue to solicit
additional  proxies in favor of the Proposals No. 2, 3 and 4. In that event,  we
will ask our  stockholders  to vote only upon the election of directors and this
Proposal No. 5 to grant our  management the  discretionary  authority to adjourn
the Annual  Meeting to a later date in order to enable our  management and Board
of Directors to continue to solicit additional proxies in favor of Proposals No.
2, 3 and 4 above (the "Adjournment Proposal"), and not Proposals No. 2, 3 and/or
4, as may be applicable.

         In this  proposal,  we are  asking you to  authorize  the holder of any
proxy  solicited  by our board to have the  discretionary  authority  to vote in
favor of adjourning the Annual Meeting,  and any later adjournments,  to a later
date in order to enable our board to solicit  additional proxies in favor of the
Merger,  the  reverse  stock  split  and  the  corporate  name  change.  If  the
stockholders  approve this  Adjournment  Proposal,  we could  adjourn the Annual
Meeting,  and any adjourned  session of the Annual Meeting,  to a later date and
use the additional  time to solicit  additional  proxies in favor of the Merger,
reverse stock split and corporate  name change,  including the  solicitation  of
proxies  from  stockholders  that have  previously  voted  against  any of those
proposals.  Among other things,  approval of the Adjournment Proposal could mean
that, even if we had received proxies  representing a sufficient number of votes
against the Merger,  reverse stock split and/or  corporate name change to defeat
those  proposals,  we could  adjourn  the Annual  Meeting  without a vote on the
Merger,  reverse stock split and/or  corporate name change proposals for up to 8
days and seek  during that  period to  convince  the holders of those  shares to
change their votes to votes in favor of the Merger,  reverse  stock split and/or
corporate name change.  If we adjourn the meeting for more than 8 days, or if we
set a new  record  date for the  adjourned  meeting,  a notice of the  adjourned
meeting shall be given to each  stockholder  of record  entitled to vote at that
meeting.

         The  Adjournment  Proposal  requires  the approval of a majority of the
votes cast on the proposal. Broker non-votes and abstentions will have no affect
on the  outcome  of the  vote on the  Adjournment  Proposal.  No  proxy  that is
specifically marked "AGAINST" approval of the Merger, reverse stock split and/or
corporate name change will be voted in favor of the Adjournment Proposal, unless
it is  specifically  marked  "FOR" the  discretionary  authority  to adjourn the
Annual  Meeting to a later date.  The board  believes  that if the number of our
shares of common stock present or  represented  at the Annual Meeting and voting
in favor of the Merger,  reverse  stock split  and/or  corporate  name change is
insufficient  to approve  those  proposals,  it is in the best  interests of our
stockholders to enable  management and the board,  for a limited period of time,
to continue to seek to obtain a sufficient  number of additional  votes in favor
of the Merger,  reverse stock split and/or  corporate name change to bring about
its approval.

OUR BOARD OF DIRECTORS  BELIEVES THAT THE TERMS OF THE ADJOURNMENT  PROPOSAL ARE
FAIR TO AND IN THE BEST INTERESTS OF US AND OUR STOCKHOLDERS AND RECOMMENDS THAT
STOCKHOLDERS  VOTE  "FOR" THE  PROPOSAL  TO  AUTHORIZE  THE  HOLDER OF ANY PROXY
SOLICITED  BY OUR BOARD TO HAVE THE  DISCRETIONARY  AUTHORITY TO VOTE TO ADJOURN
THE ANNUAL MEETING TO A LATER DATE.


                                       74



                      BENEFICIAL OWNERSHIP OF COMMON STOCK


         The following table sets forth as of June 30, 2005, certain information
regarding the ownership of our common stock by (i) each person known by us to be
the beneficial owner of more than 5% of the outstanding  shares of common stock,
(ii) each of our directors,  (iii) each of our executive officers,  and (iv) all
of our executive officers and directors as a group. Unless otherwise  indicated,
the address of each person shown is c/o Xtrana,  Inc.,  P.O.  Box 688,  Sedalia,
Colorado  80135.  References  to options  to  purchase  common  stock are either
currently exercisable or will be exercisable within 60 days of June 30, 2005.


                                         NUMBER OF SHARES      PERCENT OF CLASS
                                        BENEFICIALLY OWNED    BENEFICIALLY OWNED
                                               (1)                    (2)
                                        ------------------    ------------------

DIRECTORS:
John C. Gerdes, Ph.D..................      1,430,068                    8.6%
Michael D. Bick, Ph.D.................      1,092,950  (3)               6.7
Price Paschall........................        460,000  (4)               2.7
Doug Ayer.............................        310,384  (5)               1.8
James H. Chamberlain..................        174,000  (6)               1.0
James Mahoney, Ph.D...................        110,000  (5)                 *

5% HOLDERS:
Jay Gottlieb..........................      1,640,000  (7)               9.9
Jack Wheeler..........................      1,143,544                    6.9
Diane Kozwich.........................      1,135,002                    6.9

All directors and executive officers as     3,577,402  (8)              20.3%
   a group (six persons)..............
----------
         *        Less than 1%.
         (1)      Under  Rule  13d-3,   certain  shares  may  be  deemed  to  be
                  beneficially  owned by more than one person (if,  for example,
                  persons share the power to vote or the power to dispose of the
                  shares).  In  addition,  shares are deemed to be  beneficially
                  owned by a person if the person  has the right to acquire  the
                  shares (for  example,  upon  exercise of an option)  within 60
                  days of the date as of which the  information is provided.  In
                  computing the percentage  ownership of any person,  the amount
                  of  shares  outstanding  is deemed to  include  the  amount of
                  shares  beneficially  owned  by such  person  (and  only  such
                  person) by reason of these  acquisition  rights.  As a result,
                  the percentage of outstanding shares of any person as shown in
                  this table does not  necessarily  reflect the person's  actual
                  ownership or voting power with respect to the number of shares
                  of common stock actually outstanding at June 30, 2005.
         (2)      Percentage  ownership is based on 16,533,269  shares of common
                  stock outstanding as of June 30, 2005.
         (3)      Consists of 70,000  shares of common stock  subject to options
                  that are currently exercisable or that will become exercisable
                  within  60 days of June 30, 2005, and 1,022,950 shares held in
                  the Bick Family Trust.
         (4)      Consists  of  275,000   shares  of  common  stock  subject  to
                  currently  exercisable  warrants and 185,000  shares of common
                  stock  subject to options that are  currently  exercisable  or
                  that will become exercisable within 60 days of June 30, 2005.


                                       75



         (5)      Consists of shares of common stock subject to options that are
                  currently  exercisable or that will become  exercisable within
                  60 days of June 30, 2005.
         (6)      Includes  170,000  shares of common  stock  subject to options
                  that are currently exercisable or that will become exercisable
                  within 60 days of June 30, 2005.
         (7)      Information  obtained  from  a  Schedule  13D/A  filed  by Jay
                  Gottlieb on December 10, 2004. (8) Includes  845,384 shares of
                  common stock subject to options that are currently exercisable
                  or  that will  become  exercisable  within 60 days of June 30,
                  2005,  and 275,000 shares of common stock subject to currently
                  exercisable warrants.

         The information as to shares  beneficially  owned has been individually
furnished by the  respective  directors,  named  executive  officers,  and other
stockholders  of the company,  or taken from documents filed with the Securities
and Exchange Commission.

                            PROPOSALS OF STOCKHOLDERS

         A proper proposal  submitted by a stockholder  for  presentation at our
2006 Annual  Meeting  that was received at our  executive  offices no later than
April  17,  2006,  will be  included  in our proxy  statement  and form of proxy
relating to our 2006 Annual  Meeting.  In addition,  in the event a  stockholder
proposal is not  received by us by June 29,  2006,  the proxy to be solicited by
the Board of Directors  for our 2006 Annual  Meeting  will confer  discretionary
authority  on the  holders  of the proxy to vote the shares if the  proposal  is
presented at our 2006 Annual  Meeting  without any discussion of the proposal in
the proxy statement for such meeting.

         Securities and Exchange  Commission rules and regulations  provide that
if the date of the our 2006 Annual  Meeting is advanced or delayed  more than 30
days from the date of the 2005 Annual Meeting, stockholder proposals intended to
be included in the proxy  materials for the 2006 Annual Meeting must be received
by us  within a  reasonable  time  before  we begin to print  and mail the proxy
materials for the 2006 Annual Meeting. Upon determination by us that the date of
the 2006  Annual  Meeting  will be advanced or delayed by more than 30 days from
the date of the  2005  Annual  Meeting,  we will  disclose  such  change  in the
earliest possible Quarterly Report on Form 10-QSB.

                                  OTHER MATTERS

         We know of no other matters to be submitted to the Annual  Meeting.  If
any other matters properly come before the meeting, it is the intention that the
persons named in the enclosed form of proxy vote the proxies in accordance  with
their judgment.

                  INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

         Hein & Associates LLP,  independent  registered public accounting firm,
was selected by the Board of Directors  to serve as the  independent  registered
public accounting firm of the Company for fiscal 2004. Representatives of Hein &
Associates  LLP are  expected to be present at the Annual  Meeting,  and will be
afforded the  opportunity  to make a statement if they desire to do so, and will
be available to respond to appropriate questions from stockholders.


                                       76



                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         We are subject to the information and periodic  reporting  requirements
of  the  Securities   Exchange  Act  of  1934  and,  in  accordance  with  those
requirements, will continue to file periodic reports, proxy statements and other
information  with the SEC. These periodic  reports,  proxy  statements and other
information  will be available  for  inspection  and copying at the SEC's public
reference rooms and the SEC's website  referred to above.  You may read and copy
any document we file at the SEC's  public  reference  room at 450 Fifth  Street,
N.W., Washington,  D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further
information on the public  reference room. Our SEC filings are also available to
the public from the SEC's website at www.sec.gov.

         The SEC allows us to "incorporate by reference" the information we file
with them. This Proxy Statement  incorporates  important  business and financial
information  about us, which may not be included in or delivered with this Proxy
Statement.  The  information  incorporated  by reference is an important part of
this  Proxy  Statement,  and  information  that we file  later with the SEC will
automatically update and supersede this information.

         We incorporate by reference:

         (1)      Our Annual  Report on Form  10-KSB  for the fiscal  year ended
                  December  31, 2004 as filed with the SEC on March 31, 2005 and
                  amended by the Form 10-KSB/A filed on May 2, 2005 and the Form
                  10-KSB/A filed on July 8, 2005 (File No. 001-14257);

         (2)      Our Quarterly  Report on Form 10-QSB for the quarterly  period
                  ended March 31, 2005 (File No. 001-14257);

         (3)      Our Current Reports on Form 8-K, filed with the SEC on January
                  5,  2005,   April  12,  2005  and  July  11,  2005  (File  No.
                  001-14257); and

         (4)      Future  filings we make with the SEC under  Sections  13(a) or
                  15(d) of the  Securities  Exchange  Act  until the date of the
                  Annual Meeting.

         You may  obtain a copy of these  filings  without  charge by writing or
calling us at:

                                  Xtrana, Inc.
                         P.O. Box 668, Sedalia, CO 80135
                         Attention: Corporate Secretary
                                 (303) 466-4424

         A copy of our Annual Report on Form 10-KSB for the year ended  December
31, 2004 and  Quarterly  Report on Form  10-QSB for the quarter  ended March 31,
2005 are being delivered to the stockholders along with this Proxy Statement.

         You should rely only on the  information  incorporated  by reference or
provided in this Proxy Statement.  We have not authorized anyone else to provide
you with different  information.  You should not assume that the  information in
this Proxy  Statement  or the  documents  we have  incorporated  by reference is
accurate as of any date other than the date on the front of those documents.

                                         ON BEHALF OF THE BOARD OF DIRECTORS
                                                                            
                                         Michael D. Bick, PhD
                                         Chairman of the Board of Directors
                                         August __, 2005


                                       77



                                   APPENDIX A


                          AGREEMENT AND PLAN OF MERGER



                                  BY AND AMONG

                                  XTRANA, INC.,

                             AIC MERGER CORPORATION

                                       AND

                           ALPHA INNOTECH CORPORATION



                          DATED AS OF DECEMBER 14, 2004


                                      A-1



                          AGREEMENT AND PLAN OF MERGER

         This AGREEMENT AND PLAN OF MERGER  ("AGREEMENT")  made this 14th day of
December, 2004 is entered into by and among Xtrana, Inc., a Delaware corporation
("XTRANA"),  AIC Merger Corporation,  a California  corporation and wholly-owned
subsidiary of Xtrana ("MERGERCO"),  and Alpha Innotech Corporation, a California
corporation ("AIC").  Xtrana,  MergerCo and AIC are sometimes referred to herein
individually as a "PARTY" and collectively as the "PARTIES."

                                    RECITALS:

         A.       The Parties intend to effect the  acquisition of AIC by Xtrana
through the statutory  merger of MergerCo  with and into AIC in accordance  with
this Agreement and the CGCL, upon the  consummation of which MergerCo will cease
to exist as a separate entity and AIC will survive as a wholly-owned  subsidiary
of Xtrana.

         B.       The respective Boards of Directors of each of the Parties have
(i) determined  that this Agreement and the  transactions  contemplated  hereby,
including the Merger (as defined below), are advisable and in the best interests
of  their  respective  stockholders  and (ii)  adopted  this  Agreement  and the
transactions contemplated hereby.

         C.       In  connection   with  the  execution  and  delivery  of  this
Agreement,  Xtrana has  agreed to make a loan to AIC in the  amount of  $500,000
pursuant to the terms of the Promissory Note (as defined below), upon completion
of the Note Conversion.

         D.       It its  contemplated  that prior to the Effective  Time Xtrana
will effect a one-for-ten reverse split of its Common Stock.

         E.       The   Parties   desire   to  make   certain   representations,
warranties,  covenants and agreements in connection  with the Merger and also to
prescribe various conditions to the Merger.

                                   AGREEMENT:

         NOW, THEREFORE,  in consideration of the  representations,  warranties,
covenants and  agreements  contained in this  Agreement,  and for other good and
valuable  consideration,   the  receipt  and  sufficient  of  which  are  hereby
acknowledged, the parties hereto agree as follows:

         1.       DEFINITIONS.

                  1.1      CERTAIN DEFINITIONS. The following terms used herein,
as used in this Agreement, shall have the following meanings:

                  "AFFILIATE"  of any  specified  Person  means any other Person
directly or indirectly  Controlling or Controlled by or under direct or indirect
common Control with such specified Person.

                  "AIC COMMON  EXCHANGE RATIO" means  0.1136072,  as adjusted to
reflect  appropriately the effect of any stock split, reverse stock split, stock
dividend (including any 


                                       A-2



dividend or  distribution of securities  convertible  into Xtrana Common Stock),
reorganization,  recapitalization,  reclassification  or other like  change with
respect to Xtrana  Common Stock  occurring on or after the date hereof and prior
to the Effective Time, other than the Reverse Stock Split.

                  "AIC COMMON STOCK" means the Common Stock of AIC.

                  "AIC  INDEMNIFICATION  SHARES" means 500,000 additional shares
of Xtrana Common Stock (as adjusted to reflect  appropriately  the effect of any
stock split,  reverse stock split,  stock  dividend  (including  any dividend or
distribution   of   securities    convertible   into   Xtrana   Common   Stock),
reorganization,  recapitalization,  reclassification  or other like  change with
respect to Xtrana  Common Stock  occurring on or after the date hereof and prior
to the Effective Time except for the Reverse Stock Split), which shares shall be
deposited at Closing in escrow,  to be held pursuant to the terms and conditions
of this  Agreement  and the  Escrow  Agreement  for the  purpose  of  satisfying
Xtrana's  indemnification  obligations,  if any,  set forth in SECTION 9 of this
Agreement.  For avoidance of doubt,  the  foregoing  number has been adjusted to
reflect to the anticipated Reverse Stock Split.

                  "AIC  INDEMNIFIED  PARTIES" means AIC and its Affiliates,  and
each of their respective  officers,  directors,  agents and  representatives and
each of the heirs, executors, successors and assigns of any of the foregoing.

                  "AIC POST-MERGER  REPRESENTATIVE" means William Snider or such
other individual as may be selected by the AIC Shareholders immediately prior to
the  Effective  Time,  and who  shall  act as the  agent of the AIC  Indemnified
Parties for purposes of representing  and protecting  their interests under this
SECTION 9.

                  "AIC SERIES A PREFERRED  EXCHANGE RATIO" means  0.2868318,  as
adjusted to reflect  appropriately the effect of any stock split,  reverse stock
split,  stock  dividend  (including any dividend or  distribution  of securities
convertible  into  Xtrana  Common  Stock),   reorganization,   recapitalization,
reclassification  or other  like  change  with  respect to Xtrana  Common  Stock
occurring  on or after the date hereof and prior to the  Effective  Time,  other
than the Reverse Stock Split.

                  "AIC SERIES A-1 PREFERRED EXCHANGE RATIO" means 0.2868318,  as
adjusted to reflect  appropriately the effect of any stock split,  reverse stock
split,  stock  dividend  (including any dividend or  distribution  of securities
convertible  into  Xtrana  Common  Stock),   reorganization,   recapitalization,
reclassification  or other  like  change  with  respect to Xtrana  Common  Stock
occurring  on or after the date hereof and prior to the  Effective  Time,  other
than the Reverse Stock Split.

                  "AIC  SERIES A PREFERRED  STOCK"  means the Series A Preferred
Stock of AIC.

                  "AIC  SERIES  A-1  PREFERRED   STOCK"  means  the  Series  A-1
Preferred Stock of AIC.

                  "AIC SHARES" means,  collectively,  the AIC Common Stock,  AIC
Series A Preferred Stock and AIC Series A-1 Preferred Stock.


                                       A-3



                  "AIC SHAREHOLDERS" means, collectively, the holders of the AIC
Common Stock, AIC Series A Preferred Stock and AIC Series A-1 Preferred Stock.

                  "BENEFIT  PLAN" means any collective  bargaining  agreement or
any  bonus,   pension,   profit  sharing,   deferred   compensation,   incentive
compensation,  stock  ownership,  stock  purchase,  phantom  stock,  retirement,
vacation,  severance,  disability,  death benefit,  hospitalization,  medical or
other plan,  arrangement or understanding (whether or not legally binding) under
which a Party to this Agreement  currently has an obligation to provide benefits
to any current or former employee, officer or director of such Party.

                  "CGCL" means the California General Corporation Law.

                  "CODE" means the Internal Revenue Code of 1986, as amended.

                  "CONTROL,"  when used with  respect to any  specified  Person,
means the power to direct the management  and policies of such Person,  directly
or indirectly,  whether through the ownership of voting securities,  by contract
or otherwise.

                  "EFFECTIVE  TIME"  means the date and time the Merger  becomes
effective as specified in the Certificate of Merger or as otherwise  provided in
accordance with the CGCL.

                  "ENVIRONMENTAL  LAWS"  means all  applicable  laws,  statutes,
by-laws and regulations of any Governmental Entity relating to protection of the
environment, pollution control, product registration and Hazardous Materials.

                  "ESCROW  AGREEMENT"  means the Escrow  Agreement to be entered
into  by and  among  Xtrana,  the AIC  Post-Merger  Representative,  the  Xtrana
Post-Merger Representative and a mutually acceptable escrow agent, substantially
in the form attached hereto as EXHIBIT B.

                  "ESCROW SHARES" means,  collectively,  the Holdback Shares and
the AIC Indemnification Shares.

                  "EXCHANGE ACT" means the  Securities  Exchange Act of 1934, as
amended.

                  "GAAP"  means  generally  accepted  accounting  principles  as
applied in the United States of America.

                  "GOVERNMENTAL ENTITY" means any national, state, municipal, or
other government or any court, administrative or regulatory agency or commission
or other governmental authority or agency, domestic or foreign.

                  "HAZARDOUS MATERIALS" means any waste, pollutant, contaminant,
hazardous  substance,   toxic,  ignitable,   reactive  or  corrosive  substance,
hazardous  waste,  special  waste,  industrial  substance,  by-product,  process
intermediate  product or waste,  petroleum  or  petroleum-derived  substance  or
waste,   chemical  liquids  or  solids,  liquid  or  gaseous  products,  or  any
constituent  of any such  substance or waste,  the use,  handling or disposal of
which by the  Company is in any way  governed  by or  subject to any  applicable
Environmental Law.


                                       A-4



                  "HOLDBACK   SHARES"   means,   out  of  Xtrana   Common  Stock
constituting the Merger Consideration, 500,000 shares of Xtrana Common Stock (as
adjusted to reflect  appropriately the effect of any stock split,  reverse stock
split,  stock  dividend  (including any dividend or  distribution  of securities
convertible  into  Xtrana  Common  Stock),   reorganization,   recapitalization,
reclassification  or other  like  change  with  respect to Xtrana  Common  Stock
occurring on or after the date hereof and prior to the Effective Time except for
the Reverse Stock Split),  which shares shall be deposited at Closing in escrow,
to be held pursuant to the terms and conditions of this Agreement and the Escrow
Agreement for the purpose of satisfying AIC's  indemnification  obligations,  if
any,  set forth in SECTION 9 of this  Agreement.  For  avoidance  of doubt,  the
foregoing  number has been adjusted to reflect to the anticipated  Reverse Stock
Split.

                  "INTELLECTUAL  PROPERTY"  means any and all United  States and
foreign:  (i)  patent  registrations  and  patent  applications  (including  all
reissues,  divisions,  continuations,   continuations-in-part,   extensions  and
reexaminations)  and all rights therein and all  improvements  to the inventions
disclosed in each such  registration or application,  (ii)  trademarks,  service
marks, trade dress, trade names and corporate names,  whether or not registered,
including  but not  limited to all  common law  rights,  and  registrations  and
applications  for  registration  thereof,  (iii)  copyrights  (including but not
limited to copyrights on designs)  (registered or otherwise)  and  registrations
and applications for registration  thereof,  (iv) computer software,  including,
without limitation,  source code,  operating systems and  specifications,  data,
data bases, files,  documentation and other materials related thereto,  data and
documentation,  (v)  trade  secrets  and  confidential  technical  and  business
information (including but not limited to formulas, compositions, and inventions
reduced to practice,  whether or not patentable),  (vi) confidential  technology
(including  know-how and show-how),  manufacturing and production  processes and
techniques,  research and  development  information,  drawings,  specifications,
designs,  plans,  proposals,  technical data,  copyrightable  works,  financial,
marketing  and  business  data,  pricing  and  cost  information,  business  and
marketing plans and customer and supplier lists and information, (vii) any right
arising  under any law providing  protection  to  industrial  or other  designs,
(viii) all rights to obtain and  rights to apply for  patents,  and to  register
trademarks  and  copyrights,  and (ix) all rights to sue or  recover  and retain
damages and costs and attorneys fees for present and past infringement of any of
the foregoing.

                  "LICENSES"   means  all   notifications,   licenses,   permits
(including,  without  limitation,  environmental,   construction  and  operation
permits),  franchises,  certificates,  approvals,  exemptions,  classifications,
registrations  and  other  similar  documents  and  authorizations  issued  by a
Governmental Entity, and applications therefor.

                  "LIENS"  mean  all   mortgages,   liens,   pledges,   security
interests,   charges,  claims,  restrictions  and  encumbrances  of  any  nature
whatsoever, other than Permitted Liens.

                  "MARKET  PRICE" means the average of the closing bid and asked
prices for the Xtrana Common Stock, as reported on the Over-the-Counter Bulletin
Board, for the ten (10) trading day period commencing on the Closing Date and as
adjusted for the Reverse Stock Split.

                  "MATERIAL  ADVERSE CHANGE" or "MATERIAL ADVERSE EFFECT" means,
when used in  connection  with AIC or Xtrana,  any change or effect  that either
individually  or in the  aggregate  with all other  such  changes  or effects is
materially adverse to the business, assets, properties,  


                                       A-5



condition  (financial  or  otherwise) or results of operations of such Party and
its Subsidiaries taken as a whole.

                  "MERGER"  means  the  merger  of  MergerCo  with  and into AIC
pursuant to this Agreement and the CGCL.

                  "MERGERCO COMMON STOCK" means the Common Stock of MergerCo.

                  "MERGER  CONSIDERATION"  means that number of shares of Xtrana
Common Stock computed using the following formula:

                       MC =     (OS/0.17) - OS

                       WHERE: MC =  the   number  of  shares  of  Xtrana  Common
                                    Stock constituting the Merger Consideration.
                              OS =  the   number  of  shares  of  Xtrana  Common
                                    Stock issued  and  outstanding   immediately
                                    prior the Effective Time.

                  "MINIMUM   CLOSING   DATE  CASH"  means  an  amount  equal  to
$2,950,000 LESS (i) the Audit Fees, and (ii) all other  out-of-pocket  costs and
expenses  incurred by Xtrana on or after January 1, 2005 and through the Closing
Date which  would not have  otherwise  been  incurred by Xtrana but for delay in
consummation of the Merger resulting from the necessity of such audit of the AIC
financial  statements,  including,  but not limited to, the  consulting  fees of
$5,000  per month  payable to James  Chamberlain  for  serving as interim  Chief
Executive  Officer and interim Chief Financial  Officer of Xtrana,  the director
fees incurred by Xtrana  (consistent with past practice and policy),  consulting
fees for the services of Dennis  Lineberry,  and similar  direct costs  incurred
after  January 1, 2005 and through the Closing  Date,  but not  exceeding in the
aggregate $15,000 per month,  unless otherwise agreed in writing between AIC and
Xtrana.

                  "PERMITTED  LIENS"  means (i) liens  for  taxes,  assessments,
governmental  charges,  or claims  that are  being  contested  in good  faith by
appropriate  proceedings  and  only  to the  extent  that  a  reserve  or  other
appropriate  provision,  if any, has been made on the face of the AIC  Financial
Statements  in an amount equal to the  liability for which the lien is asserted,
(ii) statutory  liens of landlords and  warehousemen's,  carriers',  mechanics',
suppliers',   materialmen's,   repairmen's,   or  other  like  liens  (including
contractual  landlords'  liens)  arising in the ordinary  course of business and
with respect to amounts not yet  delinquent or being  contested in good faith by
appropriate proceedings,  only to the extent that a reserve or other appropriate
provision,  if any, has been made on the face of the AIC Financial Statements in
an amount equal to the liability for which the lien is asserted; and (iii) liens
incurred or deposits made in the ordinary  course of business in connection with
workers' compensation,  unemployment insurance and other similar types of social
security.


                                       A-6



                  "PERSON"  means  any  individual,  corporation,   partnership,
limited liability company, joint venture,  trust,  unincorporated  organization,
government or any agency or political subdivision thereof or other entity.

                  "POST-MERGER   REPRESENTATIVES"   means  the  AIC  Post-Merger
Representative and the Xtrana Post-Merger Representative.

                  "PROMISSORY  NOTE" means that certain Secured  Promissory Note
in the principal amount of $500,000 to be made by AIC in favor of Xtrana, in the
form attached hereto as EXHIBIT A.

                  "SEC"  means  the  United  States   Securities   and  Exchange
Commission.

                  "SECURITIES ACT" means the Securities Act of 1933, as amended.

                  "SUBSIDIARY" of any Person means another Person,  an amount of
the voting securities, other voting ownership or voting partnership interests of
another Person,  which are sufficient to elect at least a majority of such other
Person's  board of directors or other  governing  body (or, if there are no such
voting  interests,  fifty  percent (50%) or more of such other  Person's  equity
interests).

                  "TAXES" means all taxes,  assessments,  charges, duties, fees,
levies or other governmental charges (including interest, penalties or additions
associated  therewith),   including  income,  franchise,   capital  stock,  real
property, personal property, tangible, withholding,  employment, payroll, social
security, social contribution,  unemployment compensation, disability, transfer,
sales, use, excise, gross receipts,  value-added and all other taxes of any kind
for which a Person may have any liability  imposed by any  Governmental  Entity,
whether disputed or not, and any charges,  interest or penalties  imposed by any
Governmental Entity.

                  "TAX RETURN" means any report,  return,  declaration  or other
information  required to be supplied to a Governmental Entity in connection with
Taxes,  including  estimated  returns and reports of every kind with  respect to
Taxes.

                  "XTRANA COMMON STOCK" means the Common Stock,  par value $0.01
per share, of Xtrana.

                  "XTRANA INDEMNIFIED  PARTIES" means Xtrana and its Affiliates,
and each of their respective officers, directors, agents and representatives and
each of the heirs, executors, successors and assigns of any of the foregoing.

                  "XTRANA POST-MERGER REPRESENTATIVE" means James H. Chamberlain
or such other  individual  as may be selected  by the  holders of Xtrana  Common
Stock immediately prior to the Effective Time, and who shall act as the agent of
the Xtrana Indemnified Parties for purposes of representing and protecting their
interests under this SECTION 9.

                  1.2      OTHER DEFINITIONS. The following terms are defined in
the following sections of this Agreement:


                                        A-7



                  DEFINED TERM                                           SECTION
                  ------------                                           -------
                  ABI..............................................       4.17
                  ABI Agreements...................................       4.17
                  AIC..............................................     Preamble
                  AIC Audited Financial Statements.................        6.2
                  AIC Contracts....................................       3.17
                  AIC Disclosure Schedule..........................         3
                  AIC Financial Statements.........................        3.6
                  AIC Intellectual Property........................       3.21
                  AIC Shareholders' Approval.......................       3.33
                  AIC Subsidiaries.................................        3.2
                  Agreement........................................     Preamble
                  Assumed Options and Warrants.....................       2.9.8
                  Audit Fees.......................................        6.2
                  Certificate of Merger............................        2.3
                  Certificates.....................................      2.10.1
                  Claims Deadline..................................        9.2
                  Closing..........................................        2.2
                  Closing Date.....................................        2.2
                  Damages..........................................       9.3.1
                  Deferred Compensation............................       6.11
                  Hearing Notice...................................        6.3
                  Hearing Request..................................        6.3
                  Indemnification Termination Period...............        9.4
                  Indemnitee.......................................        9.4
                  Independent Accountants..........................        6.2
                  Letter of Transmittal............................      2.10.1
                  MergerCo.........................................     Preamble
                  Merger Share Certificate.........................      2.10.2
                  NIST Agreement...................................       4.17
                  Note Conversion..................................        3.3
                  Notice Materials.................................        6.3
                  Party(ies).......................................     Preamble
                  Permit...........................................        6.3
                  Proxy Statement..................................        4.8
                  Reverse Stock Split..............................       6.4.2
                  Secretary of State...............................        2.3
                  Surviving Corporation............................        2.1
                  Terminated Xtrana Contracts......................       4.18
                  Notice Materials.................................        6.3
                  US Army Agreement................................       4.17
                  Xtrana Contracts.................................       4.18
                  Xtrana Disclosure Schedule.......................         4
                  Xtrana SEC Documents.............................       4.6.1
                  Xtrana Stockholders' Approval....................       4.15
                  Xtrana Stockholders' Meeting.....................       6.4.2


                                       A-8



         2.       THE MERGER.

                  2.1      THE  MERGER.  Upon  the  terms  and  subject  to  the
conditions  set  forth in this  Agreement,  and in  accordance  with  the  CGCL,
MergerCo  shall  be  merged  with and into  AIC at the  Effective  Time.  At the
Effective  Time, the separate  existence of MergerCo shall cease,  and AIC shall
continue as the  surviving  corporation  following  the Merger  (the  "SURVIVING
CORPORATION").  The corporate  existence of AIC, with all its purposes,  rights,
privileges,  franchises,  powers and  objects,  shall  continue  unaffected  and
unimpaired by the Merger and, as the Surviving Corporation, it shall be governed
by the  laws  of the  State  of  California.  As a  result  of the  Merger,  the
outstanding  shares of capital  stock of AIC and MergerCo  shall be converted or
cancelled in the manner provided in SECTION 2.9.

                  2.2      CLOSING.   Unless  this  Agreement  shall  have  been
terminated and the transactions  herein  contemplated  shall have been abandoned
pursuant  to  SECTION  8.1 and  subject  to the  satisfaction  or waiver  (where
applicable)  of the conditions set forth in SECTION 7, the closing of the Merger
(the  "CLOSING")  will take place at 10:00 a.m. on the first  business day after
satisfaction of the conditions set forth in SECTION 7 (or as soon as practicable
thereafter  following  satisfaction  or  waiver of the  conditions  set forth in
SECTION 7) (the "CLOSING  DATE"),  at the offices of Stubbs Alderton & Markiles,
LLP,  unless another date,  time or place is agreed to in writing by the parties
hereto.

                  2.3      ACTIONS AND  DELIVERIES  AT CLOSING.  An agreement of
merger in the form attached  hereto as EXHIBIT C (the  "CERTIFICATE  OF MERGER")
shall be duly  prepared and  executed,  and shall be filed with the Secretary of
State of the State of California  (the  "SECRETARY OF STATE") in accordance with
the CGCL on the Closing Date. The Merger shall become  effective upon the filing
of the  Certificate of Merger with the Secretary of State, or at such other time
as is permissible in accordance  with the CGCL and as Xtrana and AIC shall agree
should be specified in the Certificate of Merger. In addition, at the Closing,

                           2.3.1    AIC will deliver to Xtrana:

                                    (a)      An      officers'      certificate,
substantially  in the form of EXHIBIT D, duly  executed on AIC's  behalf,  as to
whether  each  condition  specified  in SECTIONS  7.2.1  through  7.2.7 has been
satisfied in all respects.

                                    (b)      A     Secretary's      certificate,
substantially in the form of EXHIBIT E, duly executed on AIC's behalf.

                                    (c)      The Escrow Agreement, duly executed
by the AIC Post-Merger Representative.

                                    (d)      A legal  opinion of counsel to AIC,
substantially in the form of EXHIBIT F hereto.


                                       A-9



                           2.3.2    Xtrana will deliver to AIC:

                                    (a)      An      officers'      certificate,
substantially  in the form of EXHIBIT G, duly executed on Xtrana and  MergerCo's
behalf,  as to whether each condition  specified in SECTIONS 7.3.1 through 7.3.5
has been satisfied in all respects.

                                    (b)      A     Secretary's      certificate,
substantially  in the form of EXHIBIT H, duly  executed on each of Xtrana's  and
MergerCo's behalf.

                                    (c)      The Escrow Agreement, duly executed
by Xtrana and the Xtrana Post-Merger Representative.

                                    (d)      A  legal   opinion  of  counsel  to
Xtrana, substantially in the form of EXHIBIT I hereto.

                           2.3.3    Xtrana will deliver the Escrow Shares to the
escrow agent pursuant to the Escrow Agreement.

                  2.4      EFFECTS OF THE MERGER. Subject to the foregoing,  the
effects of the Merger shall be as provided in the  applicable  provisions of the
CGCL. At the Effective Time all MergerCo's property, rights, privileges, powers,
and  franchises  will  vest  in  the  Surviving  Corporation,   and  all  debts,
liabilities,  and duties of  MergerCo  will become the  Surviving  Corporation's
debts, liabilities, and duties.

                  2.5      GOVERNING DOCUMENTS OF THE SURVIVING CORPORATION.  As
of the  Effective  Time,  by virtue of the Merger and  without any action on the
part of Parties:

                           2.5.1    ARTICLES OF  INCORPORATION.  The Articles of
Incorporation of the Surviving  Corporation shall be amended and restated in its
entirety to read as set forth on EXHIBIT J hereto; and

                           2.5.2    BYLAWS.  The  Bylaws  of AIC,  as in  effect
immediately  prior to the Effective  Time,  will be the Surviving  Corporation's
Bylaws until thereafter amended.

                  2.6      DIRECTORS  OF  THE  SURVIVING  CORPORATION.   At  the
Effective  Time,  the Board of  Directors  of the  Surviving  Corporation  shall
consist of Haseeb  Chaudhry and Darryl Ray, who shall serve as the  directors of
the Surviving Corporation, each of such directors to hold office, subject to the
applicable  provisions  of the  Articles  of  Incorporation  and  Bylaws  of the
Surviving  Corporation,  in each case, until their  respective  successors shall
have been elected and  qualified or until  otherwise  provided by law. All other
directors of MergerCo  immediately  prior to the  Effective  Time shall  resign,
effective as of the Effective Time.

                  2.7      OFFICERS  OF  THE  SURVIVING   CORPORATION.   At  the
Effective Time the officers of MergerCo  immediately prior to the Effective Time
shall resign,  effective as of the Effective  Time, and shall be replaced by the
following individuals:

         Haseeb Chaudhry................  President and Chief Executive Officer
         Darryl Ray, Ph.D...............  Chief Financial Officer and Secretary


                                      A-10



who  shall  serve  as  officers  of the  Surviving  Corporation  subject  to the
applicable  provisions  of the  Articles  of  Incorporation  and  Bylaws  of the
Surviving  Corporation,  in each case, until their  respective  successors shall
have been duly appointed or until otherwise provided by law.

                  2.8      EFFECT ON CAPITAL STOCK OF MERGERCO. At the Effective
Time,  by virtue of the Merger and  without any action on the part of the holder
thereof, each share of MergerCo Common Stock issued and outstanding  immediately
prior to the Effective Time shall automatically be converted into and become one
validly  issued,  fully  paid and  nonassessable  share of  Common  Stock of the
Surviving Corporation.

                  2.9      EFFECT  ON  CAPITAL  STOCK OF AIC.  At the  Effective
Time,  by virtue of the Merger and  without any action on the part of the holder
thereof:

                           2.9.1    AGGREGATE  CONSIDERATION  TO BE  RECEIVED BY
AIC SHAREHOLDERS AND ESCROW.  The aggregate merger  consideration  issued at the
Effective  Time  to  AIC  Shareholders  will  be  that  number  of  fully  paid,
nonassessable   shares  of  Xtrana   Common   Stock   constituting   the  Merger
Consideration,  which  number  includes  the  Holdback  Shares).  To the  extent
necessary,  the  Parties  shall make  appropriate  adjustment  to the AIC Common
Exchange  Ratios,  AIC  Series A  Preferred  Exchange  Ratio and AIC  Series A-1
Preferred  Ratio,  as  applicable,  to  ensure  that the  shares  issued  at the
Effective Time to the AIC Shareholders (including the Holdback Shares) shall not
exceed the Merger Consideration. Of the total Merger Consideration,  that number
of shares of Xtrana  Common  Stock  constituting  the  Holdback  Shares shall be
deposited at Closing in escrow, along with the AIC Indemnification  Shares which
shall be  deposited in escrow at Closing by Xtrana,  to be held  pursuant to the
terms and conditions of this Agreement and the Escrow  Agreement  until released
for distribution to the AIC Shareholders or for cancellation.

                           2.9.2    CONVERSION OF AIC COMMON STOCK.  Each issued
and  outstanding  share of AIC Common  Stock  (other  than  shares of AIC Common
Stock,  if any, that are held by Xtrana or MergerCo) shall be converted into the
right to receive  that number of fully paid and  nonassessable  shares of Xtrana
Common Stock equal to the AIC Common Exchange Ratio,  subject in all respects to
SECTION 2.9.1 and the Escrow Agreement.

                           2.9.3    CONVERSION OF AIC SERIES A PREFERRED  STOCK.
Each issued and  outstanding  share of AIC Series A Preferred  Stock (other than
shares  of AIC  Series A  Preferred  Stock,  if any,  that are held by Xtrana or
MergerCo) shall be converted into the right to receive that number of fully paid
and  nonassessable  shares  of Xtrana  Common  Stock  equal to the AIC  Series A
Preferred  Exchange  Ratio,  subject in all  respects  to SECTION  2.9.1 and the
Escrow Agreement.

                           2.9.4    CONVERSION   OF  AIC  SERIES  A-1  PREFERRED
STOCK.  Each  issued and  outstanding  share of AIC Series A-1  Preferred  Stock
(other than shares of AIC Series A-1 Preferred  Stock,  if any, that are held by
Xtrana or MergerCo)  shall be converted into the right to receive that number of
fully paid and  nonassessable  shares of Xtrana  Common  Stock  equal to the AIC
Series A-1 Preferred  Exchange  Ratio,  subject in all respects to SECTION 2.9.1
and the Escrow Agreement.


                                      A-11



                           2.9.5    CANCELLATION  OF TREASURY  SHARES AND SHARES
HELD BY XTRANA.  Any and all AIC Shares  owned by Xtrana or  MergerCo or held in
the treasury of AIC shall be cancelled and cease to exist at the Effective Time,
and no consideration shall be paid with respect thereto.

                           2.9.6    NO FRACTIONAL  SHARES.  No fractional shares
of Xtrana Common Stock shall be issued in the Merger.  If the number of shares a
holder of AIC Shares holds  immediately  prior to the Closing  multiplied by the
applicable  exchange ratio would result in the issuance of a fractional share of
Xtrana  Common  Stock,  that product  will be rounded down to the nearest  whole
number  of  shares of Xtrana  Common  Stock if it is less than the  fraction  of
one-half  (.5) of one share of Xtrana  Common  Stock or round up to the  nearest
whole number of shares of Xtrana Common Stock if the said product is equal to or
greater than the fraction of one-half (.5) of one share of Xtrana Common Stock.

                           2.9.7    CANCELLATION  AND  RETIREMENT OF AIC SHARES.
As of the  Effective  Time,  all AIC Shares issued and  outstanding  immediately
prior  to  the  Effective  Time  shall  no  longer  be  outstanding   and  shall
automatically be cancelled and retired and shall cease to exist, and each holder
of a certificate representing any such AIC Shares shall cease to have any rights
with respect thereto,  except the right to receive the Merger  Consideration per
share upon the surrender of such  certificate  in accordance  with SECTION 2.10,
without any interest thereon, subject to any applicable withholding tax.

                           2.9.8    STOCK OPTIONS AND WARRANTS. At the Effective
Time, all options to purchase  shares of AIC Common Stock then  outstanding  and
all warrants to purchase  shares of AIC Common Stock or AIC Preferred Stock then
outstanding, in each case whether vested or unvested, shall be assumed by Xtrana
or replaced with Xtrana options and warrants on  substantially  identical  terms
(the "ASSUMED  OPTIONS AND  WARRANTS") in  accordance  with this SECTION  2.9.8,
provided  that  warrants  to  purchase  shares of AIC  Preferred  Stock  will be
exercisable  into shares of Xtrana  Common Stock based on the relevant  Exchange
Ratio. Each Assumed Option and Warrant will continue to have, and be subject to,
the same terms and conditions of such options immediately prior to the Effective
Time (including, without limitation, any repurchase rights or vesting provisions
and provisions  regarding the acceleration of vesting on certain  transactions),
except that (i) each  Assumed  Option and Warrant will be  exercisable  (or will
become exercisable in accordance with its terms) for that number of whole shares
of Xtrana  Common  Stock  equal to the  product  of the  number of shares of AIC
Common  Stock that were  issuable  upon  exercise  of such AIC option or warrant
immediately  prior to the Effective Time  multiplied by the AIC Common  Exchange
Ratio,  and (ii) the per share  exercise  price for the shares of Xtrana  Common
Stock issuable upon exercise of each Assumed Option and Warrant will be equal to
the quotient  determined by dividing the exercise  price per share of AIC Common
Stock at which such AIC option or warrant was exercisable  immediately  prior to
the Effective Time by the AIC Common Exchange Ratio.

         2.10     EXCHANGE OF CERTIFICATES.

                  2.10.1   EXCHANGE   PROCEDURES.    As   soon   as   reasonably
practicable  after the  Effective  Time,  Xtrana shall deliver to each holder of
record  of a  certificate  or  certificates  which,  immediately  prior  to  the
Effective Time represented outstanding shares of AIC Shares (the 


                                      A-12



"CERTIFICATES")  whose  shares are  converted  pursuant  to SECTION 2.9 into the
right to receive Merger Consideration:  (i) a letter of transmittal (the "LETTER
OF TRANSMITTAL") (which shall specify that delivery shall be effected,  and risk
of loss and title to the  Certificates  shall  pass,  only upon  delivery of the
Certificates  to  Xtrana or its  designated  agent and shall be in such form and
have such other customary  provisions as Xtrana may reasonably specify) and (ii)
instructions  for use in effecting the surrender of the  Certificate in exchange
for the Merger  Consideration  allocable to the AIC Shares formerly  represented
thereby.

                  2.10.2   MERGER  SHARE  CERTIFICATES.   Upon  surrender  of  a
Certificate  for  cancellation  to  Xtrana,  or to any agent or agents as may be
appointed by Xtrana, together with the Letter of Transmittal, duly completed and
executed in accordance  with its terms and such other documents as Xtrana or its
agent or agents,  the holder of such Certificate shall be entitled to receive in
exchange therefore, a certificate ("MERGER SHARE CERTIFICATE")  representing the
number of shares of Xtrana  Common  Stock  which  such  holder  has the right to
receive  pursuant to the  provisions  of SECTION 2.9 less such holder's pro rata
portion of the  Holdback  Shares  (calculated  as that  percentage  of the total
number of shares issuable as Merger Consideration that such holder has the right
to receive  pursuant to SECTION 2.9) and the  Certificate so  surrendered  shall
forthwith be cancelled. If any certificate for such Xtrana Common Stock is to be
issued  in a name  other  than  that in which  the  certificate  for AIC  Shares
surrendered for exchange is registered, it shall be a condition of such exchange
that the certificate so surrendered shall be properly  endorsed,  with signature
guaranteed,  or  otherwise  in  proper  form for  transfer  and that the  Person
requesting  such exchange shall pay to Xtrana or its transfer agent any transfer
or other taxes or other costs required by reason of the issuance of certificates
for such Xtrana Common Stock in a name other than that of the registered  holder
of the certificate  surrendered,  or establish to the  satisfaction of Xtrana or
its  transfer  agent  that all  taxes  have  been  paid.  Until  surrendered  as
contemplated by this SECTION  2.10.2,  each  Certificate  shall be deemed at any
time after the Effective  Time to represent  only the right to receive upon such
surrender the Merger Consideration as contemplated by SECTION 2.9.

                  2.10.3   LOST CERTIFICATES.  If any Certificate has been lost,
stolen or destroyed,  upon the making of an affidavit of that fact by the Person
claiming such  Certificate  to be lost,  stolen or destroyed and, if required by
Xtrana, the posting by such Person of a bond in such reasonable amount as Xtrana
may  direct as  indemnity  against  any claim  that may be made  against it with
respect to such  Certificate,  Xtrana  shall  issue in  exchange  for such lost,
stolen or destroyed  Certificate,  the Merger Consideration due to such Person a
provided in SECTION 2.9.

                  2.10.4   DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED  SHARES. No
dividends  or other  distributions  with  respect to Xtrana  Common Stock with a
record  date  after  the  Effective  Time  shall  be paid to the  holder  of any
unsurrendered  certificate  for AIC Shares with  respect to the shares of Xtrana
Common  Stock,  the right to receive  which is  represented  thereby,  until the
surrender of such certificate in accordance with this SECTION 2.10.

                  2.10.5   NO FURTHER OWNERSHIP RIGHTS IN AIC SHARES. All shares
of  Xtrana  Common  Stock  issued  upon the  surrender  of the  Certificates  in
accordance  with the terms of this  SECTION 2 and placed in escrow  pursuant  to
SECTION  2.9.1,  shall  be  deemed  to  have  been  issued  (and  paid)  in full
satisfaction of all rights pertaining to AIC Shares  theretofore  represented by
such certificates.


                                      A-13



                  2.10.6   NO LIABILITY.  None of the Parties shall be liable to
any  Person in respect of any shares of Xtrana  Common  Stock (or  dividends  or
distributions  with respect thereto)  delivered to a public official pursuant to
any applicable  abandoned property,  escheat or similar law. If any certificates
representing AIC Shares shall not have been surrendered prior to the first (1st)
anniversary  of the Closing,  any such shares,  dividends  or  distributions  in
respect of such  certificate  shall, to the extent  permitted by applicable law,
become the property of Xtrana,  free and clear of all claims or interests of any
Person previously entitled thereto.

         3.       REPRESENTATIONS AND WARRANTIES OF AIC.

         Except  as set forth in the  disclosure  schedule  delivered  by AIC to
Xtrana at the time of execution of this Agreement and attached  hereto (the "AIC
DISCLOSURE  SCHEDULE")  and  arranged in section  corresponding  to the numbered
subsections  contained in this SECTION 3, AIC  represents and warrants to Xtrana
as follows:

                  3.1      ORGANIZATION,  STANDING AND CORPORATE POWER. AIC is a
corporation duly organized, validly existing and in good standing under the laws
of the State of California and has the requisite  corporate  power and authority
to carry on its business as now being conducted and currently contemplated to be
conducted.  AIC is duly  qualified  or licensed  to do  business  and is in good
standing  in each  jurisdiction  in which  the  nature  of its  business  or the
ownership or leasing of its  properties  makes such  qualification  or licensing
necessary, other than in such jurisdictions where the failure to be so qualified
or licensed (individually or in the aggregate) would not have a Material Adverse
Effect on AIC.

                  3.2      SUBSIDIARIES.    The   only    direct   or   indirect
Subsidiaries  of AIC  are  listed  in the  AIC  Disclosure  Schedule  (the  "AIC
SUBSIDIARIES").  All the  outstanding  shares  of  capital  stock  of  each  AIC
Subsidiary  which is a corporation  have been validly  issued and are fully paid
and nonassessable and, except as set forth in the AIC Disclosure  Schedule,  are
owned (of record and  beneficially) by AIC, free and clear of all Liens.  Except
for the capital stock of the AIC Subsidiaries,  which are corporations, AIC does
not own, directly or indirectly,  any capital stock or other ownership  interest
in any corporation,  partnership,  business association,  joint venture or other
entity.

                  3.3      CAPITAL  STRUCTURE.  The authorized  capital stock of
AIC consists of 70,000,000 shares of AIC Common Stock,  14,000,000 shares of AIC
Series A  Preferred  Stock and  10,000,000  shares of AIC Series  A-1  Preferred
Stock, of which 23,177,526 shares of AIC Common Stock,  10,533,334 shares of AIC
Series A  Preferred  Stock and no shares of AIC Series A-1  Preferred  Stock are
issued and outstanding. In addition, the AIC Board of Directors has approved the
issuance of approximately  7,343,418 shares of AIC Series A-1 Preferred Stock in
exchange for the conversion of all outstanding  principal,  accrued  interest or
other  obligations  under  all  convertible  notes  or  other  convertible  debt
obligations of AIC  outstanding  as of the date hereof (the "NOTE  CONVERSION").
Except as set forth  above,  no shares  or other  equity  securities  of AIC are
issued, reserved for issuance or outstanding.  All outstanding shares of AIC are
duly authorized, validly issued, fully paid and nonassessable and not subject to
preemptive rights.  There are no outstanding bonds,  debentures,  notes or other
indebtedness or other securities of AIC having the right to vote (or convertible
into, or exchangeable  for,  securities having the right to vote) on any matters
on which  shareholders  of AIC may vote. The AIC Disclosure  Schedule 


                                      A-14



sets  forth  the  outstanding  capitalization  of AIC,  including  a list of all
holders of AIC Shares and their respective holdings.  Except as set forth on the
AIC Disclosure Schedule, there are no outstanding securities, options, warrants,
calls, rights, commitments, agreements, arrangements or undertakings of any kind
to which AIC is a party or by which it is bound obligating AIC to issue, deliver
or sell, or cause to be issued,  delivered or sold,  additional  shares or other
equity or voting securities of AIC or obligating AIC to issue,  grant, extend or
enter  into  any  such  security,  option,  warrant,  call,  right,  commitment,
agreement,  arrangement or  undertaking.  There are no  outstanding  contractual
obligations,  commitments,  understandings  or  arrangements  of AIC or any  AIC
Subsidiaries to repurchase,  redeem or otherwise  acquire or make any payment in
respect  of any  securities  of AIC.  There are no  agreements  or  arrangements
pursuant to which AIC is or could be required  to register  AIC Common  Stock or
other  securities  under the Securities Act, or other agreements or arrangements
with or among any security holders of AIC with respect to securities of AIC.

                  3.4      AUTHORITY.  AIC has the requisite corporate and other
power and authority to enter into this Agreement  and,  subject to obtaining the
AIC  Shareholders'  Approval  (as  defined in  SECTION  3.33),  to  perform  its
obligations  hereunder and to consummate the transactions  contemplated  hereby.
The execution and delivery of this Agreement by AIC and the  consummation by AIC
of the transactions  contemplated  hereby have been duly authorized by the Board
of Directors of AIC; the Board of  Directors  has  recommended  adoption of this
Agreement by the shareholders of AIC; and no other corporate  proceedings on the
part of AIC or its  shareholders  are  necessary  to  authorize  the  execution,
delivery and performance of this Agreement by AIC and the consummation by AIC of
the transaction  contemplated hereby, other than obtaining the AIC Shareholders'
Approval.  This  Agreement  has been  duly  executed  and  delivered  by AIC and
constitutes a valid and binding  obligation of AIC,  enforceable  against AIC in
accordance  with its terms,  subject to applicable  bankruptcy,  insolvency  and
other similar laws affecting the  enforceability of creditors' rights generally,
general equitable  principles and the discretion of courts in granting equitable
remedies.

                  3.5      NON-CONTRAVENTION. The execution and delivery of this
Agreement do not, and the consummation of the transactions  contemplated by this
Agreement and compliance with the provisions  hereof will not, conflict with, or
result in any  breach or  violation  of, or default  (with or without  notice or
lapse  of  time,  or  both)  under,  or give  rise to a  right  of  termination,
cancellation or acceleration of or "put" right with respect to any obligation or
to loss of a material  benefit under, or result in the creation of any Lien upon
any of the properties or assets of AIC under,  (i) the Articles of Incorporation
or  Bylaws of AIC,  (ii) any loan or credit  agreement,  note,  bond,  mortgage,
indenture, lease or other agreement,  instrument, permit, concession,  franchise
or license  applicable to AIC, its properties or assets, or (iii) subject to the
governmental  filings and other matters  referred to in the following  sentence,
any judgment,  order,  decree,  statute,  law,  ordinance,  rule,  regulation or
arbitration  award  applicable to AIC, its properties or assets,  other than, in
the case of clauses (ii) and (iii),  any such conflicts,  breaches,  violations,
defaults,  rights,  losses or Liens that  individually or in the aggregate would
not have either a Material Adverse Effect on AIC or would not prevent, hinder or
delay the ability of AIC to consummate  the  transactions  contemplated  by this
Agreement.  No consent,  approval,  order or authorization  of, or registration,
declaration or filing with, or notice to, any Governmental Entity is required by
or with respect to AIC in  connection  with the  execution  and delivery of this
Agreement by AIC or the  consummation  by AIC of the  transactions  contemplated
hereby,  


                                      A-15



except,  with respect to this  Agreement,  for the filing of the  Certificate of
Merger and other  appropriate  merger  documents  required  by the CGCL with the
Secretary of State and  appropriate  documents with the relevant  authorities of
other states in which AIC is qualified to do business.

                  3.6      FINANCIALS   STATEMENTS.   Set   forth   on  the  AIC
Disclosure  Schedule are the following  financial  statements  (collectively the
"AIC  FINANCIAL  STATEMENTS"):  (a) unaudited  consolidated  balance  sheets and
statements of income,  changes in shareholders'  equity, and cash flow as of and
for the fiscal years ended  December 31, 2002 and 2003 for AIC and (b) unaudited
consolidated  balance sheets and statements of income,  changes in shareholders'
equity,  and cash flow as of and for the ten months  ended  October 31, 2004 for
AIC. The AIC Financial  Statements  have been  prepared in accordance  with GAAP
applied on a consistent basis  throughout the periods covered  thereby,  present
fairly  the  financial  condition  of AIC as of such  dates and the  results  of
operations of AIC for such periods, are correct and complete, and are consistent
with the books and records of AIC; PROVIDED, HOWEVER, that the unaudited interim
financial  statements are subject to normal year-end adjustments (which will not
be material  individually  or in the  aggregate)  and lack  footnotes  and other
presentation items. Since September 30, 2004, AIC has not effected any change in
any method of  accounting  or  accounting  practice,  except for any such change
required because of a concurrent change in GAAP.

                  3.7      NO  UNDISCLOSED  LIABILITIES.  AIC  does not have any
liabilities or obligations  (whether absolute,  contingent or otherwise),  which
are not  adequately  reflected or provided for in the AIC Financial  Statements,
except for  liabilities  and  obligations  (i) that have been incurred since the
date of the most recent balance sheet  included in the AIC Financial  Statements
in the  ordinary  course of business  and are not  (singly or in the  aggregate)
material to AIC's  business,  and (ii) not due and payable or to be performed or
satisfied  after the date hereof under AIC  Contracts in  accordance  with their
terms, in each case which are not (singly or in the aggregate) material to AIC's
business.

                  3.8      ABSENCE OF CERTAIN  CHANGES OR EVENTS.  Since October
31, 2004, AIC has conducted its business only in the ordinary course  consistent
with past practice,  and there is not and has not been: (i) any Material Adverse
Change  with  respect to AIC;  (ii) any  condition,  event or  occurrence  which
individually or in the aggregate could reasonably be expected to have a Material
Adverse  Effect or give rise to a Material  Adverse  Change with respect to AIC;
(iii) any event which,  if it had taken place  following  the  execution of this
Agreement, would not have been permitted by SECTION 5.1 without prior consent of
Xtrana;  or (iv) any condition,  event or occurrence  which could  reasonably be
expected to prevent, hinder or materially delay the ability of AIC to consummate
the transactions contemplated by this Agreement.

                  3.9      LEGAL PROCEEDINGS.  There is no suit, action,  claim,
arbitration,  proceeding or  investigation  pending or, to the knowledge of AIC,
threatened  against,  relating to or involving AIC, or real or personal property
of AIC, before any Governmental Entity or other third party. To the knowledge of
AIC, there is no basis for any such suit, action, proceeding or investigation.

                  3.10     COMPLIANCE   WITH  LAW.  AIC  is  compliance  in  all
material  respects with all  applicable  laws  (including,  without  limitation,
applicable  laws  relating to zoning,  environmental  matters and the safety and
health of employees), ordinances, regulations and orders of all


                                      A-16



Governmental  Entities.  AIC has not been charged with and, to the  knowledge of
AIC,  is not now  under  investigation  with  respect  to,  a  violation  of any
applicable  law,  regulation,   ordinance,  order  or  other  requirement  of  a
Governmental  Entity.  AIC is not a party to or bound  by any  order,  judgment,
decree or injunction of any Governmental  Entity.  AIC has filed all reports and
has all Licenses required to be filed with any Governmental  Entity on or before
the date  hereof  the  failure to file or to obtain  would  result in a Material
Adverse Effect on AIC.

                  3.11     OFFICERS  AND  EMPLOYEES.  AIC has made  available to
Xtrana a schedule  containing a true and complete  list of all of the  employees
(whether full-time,  part-time or otherwise) and independent  contractors of AIC
as of the date hereof,  specifying  with respect to each such  individual his or
her position,  status,  annual salary and hourly wages,  including consulting or
other  independent  contractor  fees.  AIC is not a  party  to or  bound  by any
employment  agreement.  AIC has not  made  any  verbal  commitments  to any such
officers, employees or former employees,  consultants or independent contractors
with respect to compensation,  promotion, retention,  termination,  severance or
similar  matters  in  connection  with  the  transactions  contemplated  by this
Agreement or otherwise.

                  3.12     EMPLOYEE  RELATIONS.  To the  knowledge  of  AIC,  no
executive,  key  employee,  or group of  employees  has any  plans to  terminate
employment with AIC. AIC is not a party to or bound by any collective bargaining
agreement,  nor has AIC  experienced any strikes,  grievances,  claims of unfair
labor practices or other collective  bargaining disputes.  AIC has not committed
any unfair labor practice (as determined  under any applicable law). There is no
organizational  effort currently being made or threatened by or on behalf of any
labor union with respect to any of AIC's employees.

                  3.13     BENEFIT PLANS. The AIC Disclosure Schedule contains a
true and complete list of each Benefit Plan currently  sponsored,  maintained or
contributed  to by AIC. Any special tax status  enjoyed by such plan is noted on
such schedule.  With respect to each Benefit Plan  identified the AIC Disclosure
Schedule,  AIC has  heretofore  delivered  or made  available to Xtrana true and
complete  copies of the plan  documents and any  amendments  thereto (or, if the
plan is not written, a written  description  thereof).  AIC's records accurately
reflect its employees' employment  histories,  including their hours of service,
and all such data is maintained in a usable form.

                  3.14     CERTAIN EMPLOYEE PAYMENTS.  AIC is not a party to any
employment agreement which could result in the payment to any current, former or
future  director or employee of AIC of any money or other  property or rights or
accelerate  or provide  any other  rights or  benefits  to any such  employee or
director as a result of the transactions contemplated by this Agreement, whether
or not (i) such payment, acceleration or provision would constitute a "parachute
payment"  (within the meaning of Section  280G of the Code),  or (ii) some other
subsequent action or event would be required to cause such payment, acceleration
or provision to be triggered.

                  3.15     TAX RETURNS AND TAX  PAYMENTS.  AIC is not subject to
any liabilities or claims for Taxes,  including Taxes relating to prior periods,
other than those set forth or adequately  reserved  against in the AIC Financial
Statements  or those  incurred  since the date of the most recent  balance sheet
included in the AIC Financial Statements in the ordinary course of 


                                      A-17



business.  AIC has duly filed when due all Tax Returns in connection with and in
respect  of its  business,  assets  and  employees,  and  has  timely  paid  and
discharged  all amounts shown as due thereon.  AIC has made  available to Xtrana
accurate and complete  copies of all of its Tax Returns for all periods,  except
those periods for which returns are not yet due. AIC has not received any notice
of any Tax deficiency outstanding,  proposed or assessed against or allocable to
it,  and has not  executed  any  waiver of any  statute  of  limitations  on the
assessment or  collection of any Tax or executed or filed with any  Governmental
Entity any contract or other  agreement  now in effect  extending the period for
assessment  or  collection of any Taxes against it. There are no Liens for Taxes
upon,  pending  against  or  threatened  against,  any asset of AIC.  AIC is not
subject to any Tax allocation or sharing agreement.

                  3.16     ENVIRONMENTAL MATTERS. Except as set forth on the AIC
Disclosure  Schedule,  (i) AIC is in compliance with all  Environmental  Laws in
connection with owning, using,  maintaining or operating its business or assets;
(ii) each  location at which AIC operates,  or has operated,  its business is in
compliance  with all  Environmental  Laws; and (iii) there are no pending or, to
AIC's knowledge,  threatened  allegations by any Person that AIC's properties or
assets is not, or that its businesses has not been conducted, in compliance with
all  Environmental  Laws.  No material  expenditures  are or will be required in
order for AIC to  comply  with any  applicable  Environmental  Law.  AIC has not
received any written or oral notice,  report or other information  regarding any
actual or alleged violation of Environmental Laws or any liabilities,  including
any investigatory,  remedial or corrective liabilities,  relating to AIC, or its
facilities  arising  under  Environmental  Laws.  Neither  AIC  nor  any  of its
predecessors or Affiliates has, either expressly or by operation of law, assumed
or undertaken any liability, including any obligation for corrective or remedial
action, of any other Person relating to Environmental Laws.

                  3.17     CONTRACTS  AND   COMMITMENTS.   The  AIC   Disclosure
Schedule  contains a true,  complete and accurate  list of each of the following
written, and to AIC's knowledge, oral, contracts, agreements,  understandings or
other  obligations  to which  AIC is a party or by which  any of its  assets  or
properties are bound (together the "AIC CONTRACTS"):

                           3.17.1   all bonds, debentures,  notes, loans, credit
or loan agreements or loan  commitments,  mortgages,  indentures,  guarantees or
other  contracts  relating  to the  borrowing  of  money  or  binding  upon  any
properties or assets (real, personal or mixed, tangible or intangible) of AIC;

                           3.17.2   all  rental  or use  agreements,  contracts,
covenants or obligations which may involve the payment by or to AIC of more than
$25,000;

                           3.17.3   any  contract,   agreement,   commitment  or
obligation to make any capital expenditures in excess of $25,000;

                           3.17.4   contracts, agreements,  commitments or other
obligations  with any Person  containing any provision or covenant  limiting the
ability of AIC to engage in any line of business or to compete with or to obtain
products  or services  from any Person or limiting  the ability of any Person to
compete  with or to provide  products  or  services  to, or obtain  products  or
services from, AIC, or covering  indemnification of another Person other than in
the ordinary course of business;


                                      A-18



                           3.17.5   any   profit-sharing  or  similar  contract,
agreement, understanding or obligation with any Person;

                           3.17.6   contracts, agreements,  commitments or other
obligations  with  respect to the  purchase or sale by or to AIC of any product,
equipment,  facility,  or  similar  item that by their  respective  terms do not
expire or terminate or are not terminable by AIC,  without  penalty,  premium or
other  liability  within 30 days or may involve the payment by or to AIC of more
than $25,000;

                           3.17.7   contracts, agreements,  commitments or other
obligations  to provide  services or facilities by or to AIC or to or by another
Person which is not terminable by AIC within 30 days without penalty, premium or
other  liability  or  involving  payment by AIC or the other Person of more than
$25,000;

                           3.17.8   any contract  that provides for an increased
payment or benefit, or accelerated vesting, upon the execution of this Agreement
or in connection with the transactions contemplated hereby;

                           3.17.9   any  contract  or  agreement   granting  any
Person a Lien on all or any part of any asset of AIC;

                           3.17.10  any    contract     providing     for    the
indemnification or holding harmless by AIC of any of its shareholders, officers,
directors, employees or representatives;

                           3.17.11  all other contracts, agreements, commitments
or other  obligations  whether or not made in the  ordinary  course of  business
which may  involve  the  expenditure  by AIC of funds in excess of  $25,000  per
commitment (or under a group of similar commitments),  or are otherwise material
to AIC; or

                           3.17.12  all     other     contracts,     agreements,
commitments,  or other obligations of any kind that involve or relate to any AIC
Shareholder,  officer, director,  employee or consultant of AIC or any Affiliate
or relative thereof.

True,  correct and complete copies of all AIC Contracts have been made available
to Xtrana. To the knowledge of AIC, the AIC Contracts are legal, valid,  binding
and  enforceable in accordance with their  respective  terms with respect to AIC
and each other party to such AIC  Contracts.  There are no existing  defaults or
breaches of AIC under any AIC  Contract  (or events or  conditions  which,  with
notice or lapse of time or both would  constitute  a default or breach)  and, to
the knowledge of AIC, there are no such defaults (or events or conditions which,
with notice or lapse of time or both, would constitute a default or breach) with
respect to any third party to any AIC  Contract.  Except as set forth on the AIC
Disclosure Schedule, AIC is not participating in any discussions or negotiations
regarding  modification  of or amendment to any AIC Contract or entry in any new
material contract applicable to AIC or the real or personal property of AIC. The
AIC  Disclosure  Schedule  specifically  identifies  each AIC Contract set forth
therein  that  requires  the consent of or notice to the other party  thereto to
avoid any breach,  default or  violation  of such  contract,  agreement or other
instrument in connection with the transactions contemplated by this Agreement.


                                      A-19



                  3.18     RECEIVABLES.  All  of  the  receivables  of  AIC  are
enforceable,  represent BONA FIDE transactions, and arose in the ordinary course
of business of AIC, and are reflected properly in its books and records.  All of
AIC's receivables are reasonably believed by AIC to be collectible in accordance
with  past  practice  and the  terms  of such  receivables,  without  set off or
counterclaims  except to the extent of reserves  therefor  set forth in the most
recent  balance  sheet  included  in  the  AIC  Financial   Statements  or,  for
receivables  arising subsequent to September 30, 2004, as reflected on the books
and records of AIC. No customer or supplier of AIC has any  reasonable  basis to
believe  that it has or would be entitled to any payment  terms other than terms
in the ordinary course of business, including any prior course of conduct.

                  3.19     PERSONAL PROPERTY. AIC has good, clear and marketable
title to all the  tangible  properties  and tangible  assets  reflected in AIC's
latest  balance  sheet as being owned by AIC or acquired  after the date thereof
which are, individually or in the aggregate,  material to AIC's business (except
properties sold or otherwise  disposed of since the date thereof in the ordinary
course of business),  free and clear of all Liens. All equipment and other items
of  tangible  personal  property  and  assets  of AIC (a) are in good  operating
condition and in a state of good maintenance and repair,  ordinary wear and tear
excepted,  and (b) are  usable  in the  regular  and  ordinary  course  of AIC's
business.

                  3.20     REAL  PROPERTY.  AIC does not own any real  property.
The AIC Disclosure  Schedule sets forth all real property leases to which AIC is
a party.  AIC has a valid leasehold  interest in such leased real property,  and
such leases are in full force and effect.  The improvements and fixtures on such
real property  leased by AIC are in good  operating  condition and in a state of
good maintenance and repair, ordinary wear and tear excepted.

                  3.21     INTELLECTUAL   PROPERTY  RIGHTS.   AIC  owns,  or  is
licensed or otherwise  has the valid rights to use,  all  Intellectual  Property
used in the conduct of its business (the "AIC INTELLECTUAL  PROPERTY").  The AIC
Disclosure  Schedule  contains  an  accurate  and  complete  list  of  all:  (a)
Intellectual  Property owned by AIC, (b) Intellectual  Property licensed to AIC,
including a list of all agreements related thereto,  and (c) licenses granted by
AIC to  others  to use  AIC's  Intellectual  Property,  including  a list of all
agreements  related  thereto  (in each  case  excluding  licenses  available  in
consumer retail stores or subject to "shrink-wrap" license agreements),  in each
case that is the subject of an application,  certificate, filing or registration
with a Governmental Entity. AIC owns all right, title and interest in and to the
Intellectual Property owned by it, free and clear of any Liens. AIC has the sole
and exclusive  right to use AIC  Intellectual  Property  licensed to it, and the
consummation of the transaction contemplated hereby will not alter or impair any
such  rights.  No  claims  have  been  asserted  by any  Person  challenging  or
questioning the validity or effectiveness of any licenses or agreements  related
to the  Intellectual  Property  licensed  by, or licensed  to,  AIC,  and to the
knowledge of AIC,  there is no valid basis for any such claim.  To the knowledge
of AIC, the use by AIC of any Intellectual Property owned or licensed to it does
not  violate or  infringe  the rights of any Person.  To the  knowledge  of AIC,
neither  AIC nor any other  Person is in  default  under  any  license  or other
agreement relating to any AIC Intellectual  Property,  and all such licenses and
agreements are valid,  in full force and effect and  enforceable.  AIC has taken
reasonable steps to safeguard and maintain the secrecy and  confidentiality  of,
and its proprietary rights in, AIC Intellectual  Property.  No present or former
employee or  consultant of AIC owns or has any  proprietary,  


                                      A-20



financial or other interest, direct or indirect (other than through ownership of
AIC Common Stock), in whole or in part, in any AIC Intellectual Property.

                  3.22     TRANSACTIONS WITH RELATED PARTIES. AIC is not a party
to any contract,  lease,  license,  commitment or arrangement,  written or oral,
which,  were AIC a "registrant"  under the Exchange Act, would be required to be
disclosed pursuant to Item 404(a) or (c) of Regulation S-B as promulgated by the
SEC, and there are no loans  outstanding to or from any Person specified in Item
404(a) of Regulation S-B from or to AIC.

                  3.23     NO GUARANTIES. None of the obligations or liabilities
of AIC incurred in  connection  with the operation of its business is guaranteed
by or subject to a similar  contingent  obligation of any other Person.  AIC has
not guaranteed or become subject to a similar  contingent  obligation in respect
of the obligations or liabilities of any other Person.  There are no outstanding
letters of credit,  surety  bonds or  similar  instruments  of AIC or any of its
Affiliates.

                  3.24     INSURANCE.  The AIC  Disclosure  Schedule  contains a
complete  and  correct  list of all  insurance  policies  carried  by or for the
benefit of AIC. AIC delivered to Xtrana schedules specifying the insurer, amount
of and nature of coverage,  the risk insured against,  the deductible amount (if
any) and the date through  which  coverage  will  continue by virtue of premiums
already  paid of each such  insurance  policies.  AIC is insured by  insurers of
recognized  financial  responsibility  against such losses and risks and in such
amounts as are prudent and customary in the  businesses in which AIC is engaged.
AIC does not have any  reason to  believe  that it will not be able to renew its
existing  insurance  coverage  as and when such  coverage  expires  or to obtain
similar  coverage  from  similar  insurers as may be  necessary  to continue its
business without a significant increase in cost.

                  3.25     CUSTOMER  RELATIONS.   The  AIC  Disclosure  Schedule
contains  a  complete  and  accurate  list of the  names and  addresses  of each
customer  that  generated  more than  $40,000  in revenue  for AIC during  since
January  1, 2003.  Except as set forth in the AIC  Disclosure  Schedule  no such
customer (or former  customer)  during the last twelve (12) months has canceled,
terminated  or, to the  knowledge of AIC, made any threat to cancel or otherwise
terminate  its contract or to decrease its usage of AIC's  services or products.
AIC has not  received  any notice or has any  knowledge  to the effect  that any
current  customer or supplier  may  terminate or  materially  alter its business
relations with AIC, either as a result of the transactions  contemplated by this
Agreement or otherwise.

                  3.26     PRODUCT OR  SERVICE  DEFECTS;  LIABILITY.  AIC is not
aware of any material defects in any of its products or the design thereof,  nor
in any of the services it provides. AIC has not received any customer complaints
or third party reports  concerning  alleged defects in its products,  the design
thereof or its services that, if true,  could have a Material  Adverse Effect on
AIC, nor has AIC had any of its products  returned by a purchaser  thereof other
than for minor,  nonrecurring warranty problems. AIC has no liabilities (and, to
the knowledge of AIC, there is no basis for any present or future action against
AIC giving rise to any  liability)  arising out of any injury to  individuals or
property as a result of ownership,  possession  or use of any product  designed,
manufactured, sold, leased or delivered by AIC.


                                      A-21



                  3.27     PRODUCT WARRANTY.  Each product  manufactured,  sold,
leased or delivered by AIC has been manufactured,  sold, leased or delivered, as
the case may be, in conformity in all material respects with all applicable law,
all contracts to which AIC is a party,  and all express and implied  warranties,
and AIC does not have any liability  (and, to the knowledge of AIC,  there is no
basis for any  present or future  actions  against  AIC giving  rise to any such
liability)  for  replacement  or repair  thereof or other  damages in connection
therewith,  subject only to the reserve for product warranty claims set forth on
the face of the  Financial  Statements  (rather  than in any notes  thereto)  as
adjusted for the passage of time through the Effective Time in accordance  AIC's
ordinary  course  of  business,  consistent  with  GAAP.  No  product  designed,
manufactured,  sold,  leased or  delivered  by AIC is subject  to any  guaranty,
warranty or other indemnity or similar liability beyond the applicable  standard
terms and conditions of sale or lease.

                  3.28     LICENSES.  AIC owns or possesses  all of the material
Licenses  which are necessary to enable it to carry on its business as presently
conducted.  All such Licenses are valid,  binding, and in full force and effect.
The execution,  delivery, and performance of this Agreement and the consummation
of the  transactions  contemplated  hereby  will not  adversely  affect any such
License.

                  3.29     RECORDS. The books of account,  corporate records and
minute books of AIC are complete and correct in all material respects.  Complete
and accurate copies of all such books of account,  corporate  records and minute
books and of the stock register of AIC have been provided to Xtrana.

                  3.30     NO  BROKERS  OR  FINDERS.   AIC  has  not,   and  its
Affiliates,  officers,  directors or employees have not,  employed any broker or
finder  or  incurred  any  liability  for  any  brokerage  or  finder's  fee  or
commissions  or  similar  payment  in  connection  with any of the  transactions
contemplated hereby.

                  3.31     BOARD  RECOMMENDATION.  The Board of Directors of AIC
has  unanimously  determined that the terms of the Merger are fair to and in the
best interests of the AIC Shareholders and recommended that the AIC Shareholders
approve the Merger.

                  3.32     DISCLOSURE.  AIC has  disclosed  to Xtrana  all facts
material  to  AIC's  business,  operations,   assets,  liabilities,   prospects,
properties,  condition  (financial  or  otherwise)  and  results of  operations.
Neither this Agreement,  nor any Schedule or Exhibit to this Agreement,  nor any
other  statements,  documents or  certificates  made or delivered in  connection
herewith or therewith  contains any untrue statement of a material fact or omits
to state a material fact necessary to make the statements  contained  herein and
therein not misleading in light of the circumstances under which such statements
were  made.  None of the  information  supplied  by AIC in  connection  with the
solicitation by Xtrana of the Xtrana Stockholders' Approval contained any untrue
statement of a material  fact or omitted to state any material  fact required to
be stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they are made, not misleading.

                  3.33     REQUIRED AIC VOTE. The  affirmative  votes of (a) the
holders of a majority of the shares of AIC Shares  voting  together as one class
on an as-converted basis and (b) the 


                                      A-22



holders of AIC Series A  Preferred  Stock and AIC  Series A-1  Preferred  Stock,
voting together as one class,  are the only votes of the holders of any class or
series  of  AIC's   securities   necessary  to  approve  the  Merger  (the  "AIC
SHAREHOLDERS' APPROVAL").

         4.       REPRESENTATIONS AND WARRANTIES OF XTRANA AND MERGERCO.

         Except as set forth in the disclosure  schedule  delivered by Xtrana to
AIC at the time of execution of this Agreement and attached  hereto (the "XTRANA
DISCLOSURE SCHEDULE"), Xtrana and MergerCo, jointly and severally, represent and
warrant to AIC as follows:

                  4.1      ORGANIZATION, STANDING AND CORPORATE POWER. Xtrana is
duly  organized,  validly  existing and in good  standing  under the laws of the
State of Delaware,  and has the requisite corporate power and authority to carry
on its  business as now being  conducted.  MergerCo is duly  organized,  validly
existing and in good standing under the laws of the State of California, and has
the  requisite  corporate  power and  authority  to carry on its business as now
being conducted.

                  4.2      NO SUBSIDIARIES. Other than MergerCo, Xtrana does not
currently  own,  directly or  indirectly,  any capital stock or other  equities,
securities  or interests in any other  corporation  or in any limited  liability
company, partnership, joint venture or other association.

                  4.3      CAPITAL STRUCTURE.

                           4.3.1    The  authorized   capital  stock  of  Xtrana
consists of 50,000,000 shares of Xtrana Common Stock,  $0.01 par value, of which
16,533,269  shares of Xtrana Common Stock are issued and  outstanding  as of the
date of this Agreement.  All outstanding  shares of capital stock of Xtrana are,
and all shares  which may be issued  pursuant  to this  Agreement  will be, when
issued, duly authorized,  validly issued,  fully paid and nonassessable and, not
subject to preemptive rights, and issued in compliance with all applicable state
and federal laws concerning the issuance of securities. There are no outstanding
bonds,  debentures,  notes or other  indebtedness or other  securities of Xtrana
having the right to vote (or convertible into, or exchangeable  for,  securities
having the right to vote) on any matters on which holders of Xtrana Common Stock
may vote.  Except as set forth on the Xtrana Disclosure  Schedule,  there are no
outstanding  securities,   options,   warrants,   calls,  rights,   commitments,
agreements,  arrangements or undertakings of any kind to which Xtrana is a party
or by which any of them is bound obligating Xtrana to issue, deliver or sell, or
cause to be issued,  delivered or sold,  additional  shares of capital  stock or
other equity  securities  of Xtrana or  obligating  Xtrana to issue,  deliver or
sell,  or cause to be issued,  delivered or sold,  additional  shares of capital
stock or other equity securities of Xtrana or obligating Xtrana to issue, grant,
extend  or  enter  into  any  such  security,   option,  warrant,  call,  right,
commitment,  agreement,  arrangement  or  undertaking.  There are no outstanding
contractual obligations,  commitments,  understandings or arrangements of Xtrana
to repurchase, redeem or otherwise acquire or make any payment in respect of any
shares of  capital  stock of Xtrana.  There are no  agreements  or  arrangements
pursuant to which  Xtrana is or could be  required to register  shares of Xtrana
Common Stock or other securities under the Securities Act or other agreements or
arrangements  with or among any  holder of Xtrana  securities  with  respect  to
securities of Xtrana.


                                      A-23



                           4.3.2    The  authorized  capital  stock of  MergerCo
consists  of  1,000  shares  of  Common  Stock,  all of  which  are  issued  and
outstanding as of the date of this Agreement and held by Xtrana. All outstanding
shares of capital stock of MergerCo are duly authorized,  validly issued,  fully
paid and  nonassessable.  There are no outstanding bonds,  debentures,  notes or
other  indebtedness or other securities of MergerCo having the right to vote (or
convertible into, or exchangeable  for,  securities having the right to vote) on
any matters on which  holders of MergerCo  Common Stock may vote.  Other than as
provided  in this  Agreement,  there  are no  outstanding  securities,  options,
warrants, calls, rights, commitments,  agreements,  arrangements or undertakings
of any  kind to  which  MergerCo  is a party  or by  which  any of them is bound
obligating MergerCo to issue, deliver or sell, or cause to be issued,  delivered
or sold,  additional  shares of  capital  stock or other  equity  securities  of
MergerCo  or  obligating  MergerCo  to issue,  deliver  or sell,  or cause to be
issued,  delivered or sold,  additional  shares of capital stock or other equity
securities of MergerCo or obligating  MergerCo to issue,  grant, extend or enter
into any such security,  option,  warrant, call, right,  commitment,  agreement,
arrangement or undertaking.

                  4.4      AUTHORITY.  Each  of  Xtrana  and  MergerCo  has  the
requisite  corporate and other power and authority to enter into this  Agreement
and,  subject to  obtaining  the Xtrana  Stockholders'  Approval  (as defined in
SECTION  4.15),  to perform its  obligations  hereunder  and to  consummate  the
transactions  contemplated  hereby. The execution and delivery of this Agreement
by each Xtrana and MergerCo and the  consummation  by Xtrana and MergerCo of the
transactions  contemplated  hereby  have  been duly  authorized  by the Board of
Directors of Xtrana;  the Board of Directors  has  recommended  adoption of this
Agreement by the stockholders of Xtrana;  and no other corporate  proceedings on
the part of Xtrana or its stockholders are necessary to authorize the execution,
deliver and  performance  of this  Agreement by Xtrana and the  consummation  by
Xtrana of the transaction  contemplated  hereby, other than obtaining the Xtrana
Stockholders'  Approval.  This Agreement has been duly executed and delivered by
each of Xtrana and MergerCo and  constitutes  a valid and binding  obligation of
each of Xtrana and MergerCo,  enforceable  against such Party in accordance with
its terms, subject to applicable  bankruptcy,  insolvency and other similar laws
affecting the  enforceability of creditors' rights generally,  general equitable
principles and the discretion of courts in granting equitable remedies.

                  4.5      NON-CONTRAVENTION. The execution and delivery of this
Agreement do not, and the consummation of the transactions  contemplated by this
Agreement and compliance with the provisions  hereof will not, conflict with, or
result in any  breach or  violation  of, or default  (with or without  notice or
lapse  of  time,  or  both)  under,  or give  rise to a  right  of  termination,
cancellation or acceleration of or "put" right with respect to any obligation or
to loss of a material  benefit under, or result in the creation of any Lien upon
any of the  properties  or assets of either  Xtrana or MergerCo  under,  (i) the
Certificate or Articles of Incorporation  or Bylaws of Xtrana or MergerCo,  (ii)
any loan or credit agreement,  note, bond, mortgage,  indenture,  lease or other
agreement,  instrument,  permit, concession,  franchise or license applicable to
Xtrana or MergerCo,  their respective  properties or assets, or (iii) subject to
the  governmental  filings  and  other  matters  referred  to in  the  following
sentence, any judgment, order, decree, statute, law, ordinance, rule, regulation
or  arbitration  award  applicable  to  Xtrana  or  MergerCo,  their  respective
properties  or assets,  other than,  in the case of clauses (ii) and (iii),  any
such conflicts,  breaches,  violations,  defaults,  rights, losses or Liens that
individually or in the aggregate could not have either a Material Adverse Effect
on Xtrana or  MergerCo  or could not  prevent,  hinder or 


                                      A-24



delay  the  ability  of  Xtrana  or  MergerCo  to  consummate  the  transactions
contemplated by this Agreement. No consent, approval, order or authorization of,
or  registration,  declaration  or filing with,  or notice to, any  Governmental
Entity is required by or with respect to Xtrana or MergerCo in  connection  with
the  execution  and  delivery  of this  Agreement  by Xtrana or  MergerCo or the
consummation  by Xtrana and MergerCo of the  transactions  contemplated  hereby,
except,  with respect to this  Agreement,  for the filing of the  Certificate of
Merger and other  appropriate  merger  documents  required  by the CGCL with the
Secretary of State and  appropriate  documents with the relevant  authorities of
other states in which Xtrana is qualified to do business.

                  4.6      SEC DOCUMENTS; UNDISCLOSED LIABILITIES.

                           4.6.1    For all  periods  subsequent  to  January 1,
2000,  Xtrana has filed all  reports,  schedules,  forms,  statements  and other
documents  as  required  by the SEC in a timely  basis (or has  received a valid
extension  of such  time of  filing  and has  filed  any such  reports  or other
documents  prior  to the  expiration  of any such  extension),  and  Xtrana  has
delivered or made available to AIC all reports, schedules, forms, statements and
other documents filed with the SEC during such period (collectively, and in each
case including all exhibits and schedules thereto and documents  incorporated by
reference  therein,  the "XTRANA SEC  DOCUMENTS").  As of their respective dates
(or,  if  amended,  supplemented  or  superseded  by a filing  prior to the date
hereof, then as of the date of such amendment, supplement or superseding filing)
the Xtrana SEC Documents complied in all material respects with the requirements
of the Securities Act or the Exchange Act, as the case may be, and the rules and
regulations  of the SEC  promulgated  thereunder  applicable  to such Xtrana SEC
Documents,  and  none  of the  Xtrana  SEC  Documents  (including  any  and  all
consolidated  financial  statements  included therein) as of such date contained
any  untrue  statement  of a material  fact or omitted to state a material  fact
required  to be stated  therein  or  necessary  in order to make the  statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.  The  consolidated  financial  statements of Xtrana included in such
Xtrana SEC Documents comply as to form in all material  respects with applicable
accounting  requirements and the published rules and regulations of the SEC with
respect thereto, have been prepared in accordance with GAAP (except, in the case
of unaudited consolidated  quarterly statements,  as permitted by Form 10-QSB of
the SEC) applied on a consistent  basis during the periods  involved  (except as
may be indicated in the notes  thereto)  and fairly and  accurately  present the
consolidated  financial  position  of  Xtrana as of the  dates  thereof  and the
consolidated  results of  operations  and  changes in cash flows for the periods
covered thereby  (subject,  in the case of unaudited  quarterly  statements,  to
normal  year-end  audit  adjustments  as  determined  by  Xtrana's   independent
accountants).  Except as set forth in the Xtrana SEC  Documents,  at the date of
the most  recent  financial  statements  of Xtrana  included  in the  Xtrana SEC
Documents, Xtrana did not have, and since such date Xtrana has not incurred, any
liabilities or obligations of any nature (whether accrued, absolute,  contingent
or otherwise)  except for liabilities  and  obligations  that have been incurred
since the date of the most recent balance sheet included in the Xtrana Financial
Statements  in the  ordinary  course of  business  and are not (singly or in the
aggregate) material to Xtrana's business.

                           4.6.2    The  Xtrana  SEC   Documents   include   all
certifications  and  statements  required  of it, if any,  by (i) Rule 13a-14 or
15d-14 under the Exchange  Act, and (ii) 18 U.S.C.  Section 1350 (Section 906 of
the Sarbanes-Oxley Act of 2002), and each of such  certifications and statements
contain no  qualifications  or exceptions to the matters certified 


                                      A-25



therein other than a knowledge  qualification,  permitted  under such provision,
and have not been  modified  or  withdrawn  and  neither  Xtrana  nor any of its
officers has received any notice from the SEC or any other  Governmental  Entity
questioning or challenging the accuracy,  completeness, form or manner of filing
or submission of such certifications or statements.

                           4.6.3    Xtrana  is in  compliance  in  all  material
respects with all of the provisions of the  Sarbanes-Oxley  Act of 2002, and the
provisions  of the Exchange Act and the  Securities  Act relating  thereto which
under the terms of such provisions (including the dates by which such compliance
is required) have become applicable to Xtrana.

                  4.7      ABSENCE  OF  CERTAIN  CHANGES  OR  EVENTS.  Except as
disclosed  in the  Xtrana  SEC  Documents,  since  the date of the  most  recent
financial statements included in the Xtrana SEC Documents,  Xtrana has conducted
its business only in the ordinary course  consistent with past practice in light
of its current  business  circumstances,  and there is not and has not been: (i)
any Material Adverse Change with respect to Xtrana; (ii) any condition, event or
occurrence which, individually or in the aggregate, could reasonably be expected
to have a Material Adverse Effect or give rise to a Material Adverse Change with
respect to Xtrana;  (iii) any event which,  if it had taken place  following the
execution  of this  Agreement,  would not have been  permitted  by  SECTION  5.1
without the prior  consent of AIC; or (iv) any  condition,  event or  occurrence
which could  reasonably be expected to prevent,  hinder or materially  delay the
ability of Xtrana to consummate the transactions contemplated by this Agreement.

                  4.8      INFORMATION   SUPPLIED.   None  of  the   information
included or  incorporated  by reference in the proxy  statement  relating to the
Xtrana  Stockholders'  Meeting  (as  defined  in SECTION  6.4.2),  as amended or
supplemented  from time to time (as so  amended  and  supplemented,  the  "PROXY
STATEMENT"),  and any other  documents to be filed by Xtrana with the SEC or any
other  Governmental   Entity  in  connection  with  the  Merger  and  the  other
transactions contemplated hereby will, on the date of its filing or, in the case
of the Proxy  Statement,  at the date it is mailed to stockholders of Xtrana and
at the time of the Xtrana Stockholders' Meeting, contain any untrue statement of
a material fact or omit to state any material fact required to be stated therein
or  necessary  in  order  to  make  the  statements  therein,  in  light  of the
circumstances  under which they are made, not misleading or necessary to correct
any statement in any earlier  communication  with respect to any solicitation of
proxies for the Xtrana  Stockholders'  Meeting  which shall have become false or
misleading,  except that no  representation  is made by Xtrana  with  respect to
information  supplied in writing by or on behalf of AIC for  inclusion  therein.
The Proxy Statement filed by Xtrana with the SEC under the Exchange Act relating
to the Xtrana  Stockholders'  Meeting,  and any other documents to be filed with
the SEC in  connection  with the Merger,  will comply as to form in all material
respects with the Exchange Act.

                  4.9      CERTAIN EMPLOYEE  PAYMENTS.  Xtrana is not a party to
any  employment  agreement  which could  result in the  payment to any  current,
former or future  director or employee of Xtrana of any money or other  property
or rights or  accelerate  or provide  any other  rights or  benefits to any such
employee  or  director  as a result  of the  transactions  contemplated  by this
Agreement,  whether or not (i) such  payment,  acceleration  or provision  would
constitute  a  "parachute  payment"  (within the meaning of Section  280G of the
Code), or (ii) some other subsequent  action or event would be required to cause
such payment, acceleration or provision to be triggered.


                                      A-26



                  4.10     TAX RETURNS AND TAX  PAYMENTS.  Xtrana is not subject
to any  liabilities  or claims  for Taxes,  including  Taxes  relating  to prior
periods,  other  than  those set forth or  adequately  reserved  against  in the
financial  statements  included in the Xtrana SEC  Documents  or those  incurred
since the date of the most  recent  balance  sheet  included  in the  Xtrana SEC
Documents in the ordinary course of business. Xtrana has duly filed when due all
Tax  Returns  in  connection  with and in respect  of its  business,  assets and
employees,  and has timely paid and discharged all amounts shown as due thereon.
Xtrana has made available to AIC accurate and complete  copies of all of its Tax
Returns for all periods, except those periods for which returns are not yet due.
Xtrana has not received any notice of any Tax deficiency  outstanding,  proposed
or assessed  against or  allocable to it, and has not executed any waiver of any
statute of limitations on the assessment or collection of any Tax or executed or
filed with any Governmental Entity any contract or other agreement now in effect
extending the period for assessment or collection of any Taxes against it. There
are no Liens for Taxes upon, pending against or threatened against, any asset of
Xtrana. Xtrana is not subject to any Tax allocation or sharing agreement.

                  4.11     RECORDS. The books of accounts, corporate records and
minute  books of Xtrana and  MergerCo  are  complete and correct in all material
respects.  Complete and accurate copies of all such books of account,  corporate
records and minute books of Xtrana and MergerCo have been provided to AIC.

                  4.12     MERGERCO.  MergerCo  has  been  formed  for the  sole
purpose of effecting the Merger and,  except as  contemplated by this Agreement,
MergerCo  has not  conducted  any  business  activities  and  does  not have any
material liabilities.

                  4.13     NO BROKERS OR FINDERS.  Neither Xtrana, MergerCo, nor
their respective Affiliates, officers, directors or employees have, employed any
broker or finder or incurred any  liability for any brokerage or finder's fee or
commissions  or  similar  payment  in  connection  with any of the  transactions
contemplated hereby.

                  4.14     BOARD  RECOMMENDATION.  The  Board  of  Directors  of
Xtrana has  unanimously  determined that the terms of the Merger are fair to and
in the best interests of the  Stockholders  of Xtrana and  recommended  that the
holders of Xtrana Common Stock approve the Merger.

                  4.15     REQUIRED  XTRANA VOTE.  The  affirmative  vote of the
holders of a majority of shares of Xtrana  Common  Stock is the only vote of the
holders of any class or series of Xtrana's  securities  necessary to approve the
Merger (the "XTRANA STOCKHOLDERS' APPROVAL").

                  4.16     LEGAL PROCEEDINGS.  There is no suit, action,  claim,
arbitration, proceeding or investigation pending or, to the knowledge of Xtrana,
threatened  against,  relating  to or  involving  Xtrana,  or real  or  personal
property of Xtrana,  before any Governmental Entity or other third party. To the
knowledge of Xtrana, there is no basis for any such suit, action,  proceeding or
investigation.

                  4.17     TRANSACTIONS   WITH   APPLERA   CORPORATION.   Xtrana
provided  to AIC  true  and  complete  copies  of all  agreements,  instruments,
certificates  and other  documents  entered or 


                                      A-27



delivered in connection  with the Assignment  Agreement  dated as of January 26,
2004  by and  between  Xtrana  and  Applera  Corporation,  through  its  Applied
Biosystems  Group  ("ABI"),  as amended  by the First  Amendment  to  Assignment
Agreement  dated as of March 31, 2004,  between Xtrana and ABI (as amended,  the
"ASSIGNMENT  AGREEMENT"),  including all amendments,  supplements,  exhibits and
ancillary agreements related thereto (collectively, the "ABI AGREEMENTS"). Other
than breaches or potential breaches that have been waived,  all  representations
warranties  made by Xtrana in the Assignment  Agreement were true and correct on
the date of the  Assignment  Agreement  and on the  closing of the  transactions
under the Assignment Agreement. Xtrana is in compliance in all material respects
with and has not breached,  violated or defaulted under in any material respect,
or received notice that it has breached, violated or defaulted under, any of the
terms or conditions of the ABI  Agreements,  nor has there occurred any event or
condition that could reasonably  constitute such a breach,  violation or default
with the lapse of time, giving of notice or both, and Xtrana is not aware of any
legitimate  basis for any  indemnification  claim  against  Xtrana under the ABI
Agreements.  The  ABI  Agreements  and  the  consummation  of  the  transactions
contemplated  thereby did not breach or caused a default  under the  Cooperation
Agreement  No.  70NANB5H1109  between  Xtrana  and the  National  Institutes  of
Standards  and  Technology  (the  "NIST   AGREEMENT")  or  under  Contract  DAMB
17-00-C-001  between Xtrana and the U.S. Army (the "US ARMY AGREEMENT").  Xtrana
has at all times  complied with all terms and  conditions of the NIST  Agreement
and the US Army  Agreement,  and except  pursuant to the  Confirmatory  Licenses
dated February 18, 2004 and February 20, 2004, true and complete copies of which
were delivered to AIC, Xtrana has no obligations under the NIST Agreement or the
US Army Agreement required to be performed after the date of this Agreement.

                  4.18     CONTRACTS  AND  COMMITMENTS.  The  Xtrana  Disclosure
Schedule  contains a true,  complete and accurate  list of each of the following
written, and to Xtrana's knowledge, oral, contracts, agreements,  understandings
or other obligations to which Xtrana is a party or by which any of its assets or
properties are bound (together the "XTRANA CONTRACTS"):

                           4.18.1   all bonds, debentures,  notes, loans, credit
or loan agreements or loan  commitments,  mortgages,  indentures,  guarantees or
other  contracts  relating  to the  borrowing  of  money  or  binding  upon  any
properties  or assets  (real,  personal  or mixed,  tangible or  intangible)  of
Xtrana;

                           4.18.2   all  rental  or use  agreements,  contracts,
covenants or  obligations  which may involve the payment by or to Xtrana of more
than $25,000;

                           4.18.3   any  contract,   agreement,   commitment  or
obligation to make any capital expenditures in excess of $25,000;

                           4.18.4   contracts, agreements,  commitments or other
obligations  with any Person  containing any provision or covenant  limiting the
ability of Xtrana to engage in any line of  business  or to  compete  with or to
obtain  products  or  services  from any Person or  limiting  the ability of any
Person to compete with or to provide products or services to, or obtain products
or services from,  Xtrana, or covering  indemnification  of another Person other
than in the ordinary course of business;


                                      A-28



                           4.18.5   any   profit-sharing  or  similar  contract,
agreement, understanding or obligation with any Person;

                           4.18.6   contracts, agreements,  commitments or other
obligations with respect to the purchase or sale by or to Xtrana of any product,
equipment,  facility,  or  similar  item that by their  respective  terms do not
expire or terminate or are not terminable by Xtrana, without penalty, premium or
other  liability  within 30 days or may  involve  the payment by or to Xtrana of
more than $25,000;

                           4.18.7   contracts, agreements,  commitments or other
obligations  to  provide  services  or  facilities  by or to  Xtrana or to or by
another Person which is not terminable by Xtrana within 30 days without penalty,
premium or other liability or involving payment by Xtrana or the other Person of
more than $25,000;

                           4.18.8   any contract  that provides for an increased
payment or benefit, or accelerated vesting, upon the execution of this Agreement
or in connection with the transactions contemplated hereby;

                           4.18.9   any  contract  or  agreement   granting  any
Person a Lien on all or any part of any asset of Xtrana;

                           4.18.10  any    contract     providing     for    the
indemnification  or  holding  harmless  by  Xtrana  of any of its  shareholders,
officers, directors, employees or representatives;

                           4.18.11  all other contracts, agreements, commitments
or other  obligations  whether or not made in the  ordinary  course of  business
which may  involve the  expenditure  by Xtrana of funds in excess of $25,000 per
commitment (or under a group of similar commitments),  or are otherwise material
to Xtrana; or

                           4.18.12  all     other     contracts,     agreements,
commitments,  or other  obligations  of any kind that  involve  or relate to any
holder of Xtrana  Common  Stock,  officer,  director,  employee or consultant of
Xtrana or any Affiliate or relative thereof.

True,  correct  and  complete  copies  of all  Xtrana  Contracts  have been made
available to AIC. To the  knowledge of Xtrana,  the Xtrana  Contracts are legal,
valid,  binding and enforceable in accordance with their  respective  terms with
respect to Xtrana and each other  party to such Xtrana  Contracts.  There are no
existing  defaults or breaches of Xtrana under any Xtrana Contract (or events or
conditions  which,  with  notice  or lapse of time or both  would  constitute  a
default or breach) and, to the  knowledge of Xtrana,  there are no such defaults
(or events or  conditions  which,  with  notice or lapse of time or both,  would
constitute  a default or breach)  with  respect to any third party to any Xtrana
Contract.  Except as set forth on the Xtrana Disclosure Schedule,  Xtrana is not
participating  in any discussions or negotiations  regarding  modification of or
amendment  to any  Xtrana  Contract  or  entry  in  any  new  material  contract
applicable  to Xtrana or the real or  personal  property  of Xtrana.  The Xtrana
Disclosure  Schedule  specifically  identifies  each Xtrana  Contract  set forth
therein  that  requires  the consent of or notice to the other party  thereto to
avoid any breach,  default or  violation  of such  contract,  agreement or other
instrument in connection with the transactions contemplated by this Agreement.


                                      A-29



         The Xtrana Disclosure  Schedule contains a true,  complete and accurate
list of each written contract,  agreement,  understanding or other obligation to
which Xtrana was a party or by which any of its assets or  properties  was bound
that was  terminated  by Xtrana  since May 14, 2004  (together  the  "TERMINATED
XTRANA  Contracts").  True, correct and complete copies of all Terminated Xtrana
Contracts  have  been  made  available  to AIC.  Each of the  Terminated  Xtrana
Contracts was terminated in full  compliance  with its terms or with the written
consent of the other  party to such  Terminated  Xtrana  Contract,  in each case
without any liability to Xtrana.

                  4.19     INSURANCE.  The Xtrana Disclosure Schedule contains a
complete  and  correct  list of all  insurance  policies  carried  by or for the
benefit of Xtrana, specifying the insurer, amount of and nature of coverage, the
risk insured against,  the deductible amount (if any) and the date through which
coverage will continue by virtue of premiums already paid.

                  4.20     PRODUCT OR SERVICE DEFECTS;  LIABILITY. Xtrana is not
aware  of any  material  defects  in any of  its  products  (including  products
developed  and sold  prior  to  completion  of the  transactions  under  the ABI
Agreements)  or the design  thereof,  nor in any of the  services  it  provides.
Xtrana  has  not  received  any  customer  complaints  or  third  party  reports
concerning  alleged defects in its products,  the design thereof or its services
that, if true,  could have a Material  Adverse Effect on Xtrana,  nor has Xtrana
had any of its products  returned by a purchaser  thereof  other than for minor,
nonrecurring warranty problems. Xtrana has no liabilities (and, to the knowledge
of Xtrana,  there is no basis for any present or future  action  against  Xtrana
giving  rise to any  liability)  arising  out of any  injury to  individuals  or
property as a result of ownership,  possession  or use of any product  designed,
manufactured, sold, leased or delivered by Xtrana.

                  4.21     PRODUCT WARRANTY.  Each product  manufactured,  sold,
leased or delivered by Xtrana has been manufactured,  sold, leased or delivered,
as the case may be, in conformity in all material  respects with all  applicable
law,  all  contracts  to which  Xtrana is a party,  and all  express and implied
warranties,  and Xtrana does not have any  liability  (and,  to the knowledge of
Xtrana,  there is no basis for any  present  or future  actions  against  Xtrana
giving rise to any such  liability)  for  replacement or repair thereof or other
damages  in  connection  therewith,  subject  only to the  reserve  for  product
warranty  claims set forth on the face of the financial  statements  included in
the Xtrana SEC Documents  (rather than in any notes thereto) as adjusted for the
passage of time  through the  Effective  Time in  accordance  Xtrana's  ordinary
course of business,  consistent  with GAAP. No product  designed,  manufactured,
sold,  leased or  delivered  by Xtrana is subject to any  guaranty,  warranty or
other indemnity or similar  liability  beyond the applicable  standard terms and
conditions of sale or lease.

                  4.22     BENEFIT  PLANS.   The  Xtrana   Disclosure   Schedule
contains a true and  complete  list of each Benefit  Plan  currently  sponsored,
maintained or contributed to by Xtrana as well as any "employee benefit plan" as
defined in Section  3(3) of ERISA of Xtrana.  Any special tax status  enjoyed by
such plan is noted on such  schedule.  With  respect  to each  Benefit  Plan and
"employee benefit plan" identified on the Xtrana Disclosure Schedule, Xtrana has
heretofore  delivered or made  available to AIC true and complete  copies of the
plan  documents and any  amendments  thereto (or, if the plan is not written,  a
written description thereof).  Xtrana has performed in all material respects all
obligations required to be performed by it under each Benefit Plan and "employee
benefit  plan"  identified  on the  Xtrana  Disclosure  Schedule,  and each 


                                      A-30



such Benefit Plan has been  established and maintained in all material  respects
in  accordance  with its  terms  and in  compliance  with all  applicable  laws,
statutes,  orders, rules and regulations,  including but not limited to ERISA or
the  Code.  Xtrana's  records  accurately  reflect  its  employees'   employment
histories,  including their hours of service, and all such data is maintained in
a usable form.  Xtrana has taken all actions  required to terminate  the Xtrana,
Inc. 401(k) Plan.

                  4.23     DISCLOSURE.  None  of  the  information  supplied  by
Xtrana  in  connection  with the  solicitation  by AIC of the AIC  Shareholders'
Approval  contained any untrue  statement of a material fact or omitted to state
any material  fact  required to be stated  therein or necessary in order to make
the statements therein, in light of the circumstances under which they are made,
not misleading.

         5.       COVENANTS RELATING TO CONDUCT OF BUSINESS PRIOR TO MERGER.

                  5.1      CONDUCT  OF  AIC,  XTRANA  AND  MERGERCO.  Except  as
expressly  permitted by this  Agreement,  between the date of this Agreement and
the  Effective  Time,  each of Xtrana and AIC shall conduct its business only in
the ordinary course in  substantially  the same manner as heretofore  conducted,
and use all its  reasonable  efforts to  preserve  intact its  present  business
organization and employees and to preserve the goodwill of Persons with which it
has business relations. Without limiting the generality of the foregoing, except
as  otherwise  expressly  provided in this  Agreement,  between the date of this
Agreement and the Effective  Time, (i) each of Xtrana and AIC shall pay accounts
payable and pay and perform other  obligations  of its business when they become
due and  payable  in the  ordinary  course  of  business  consistent  with  past
practice, or when required to be performed, as the case may be, and (ii) each of
Xtrana, MergerCo and AIC shall (unless otherwise mutually agreed to in writing):

                           5.1.1    not  amend  or  alter  its   certificate  or
articles of  incorporation,  bylaws,  or similar  charter  documents  (except as
required to effect the Reverse  Stock Split (as defined in SECTION  6.4.2 below)
and the Note Conversion);

                           5.1.2    not engage in any transaction, except in the
normal and ordinary course of business, or create or suffer to exist any Lien or
other encumbrance upon any of its assets or which will not be discharged in full
prior to the Effective Time;

                           5.1.3    not  sell,   exchange,   lease,   assign  or
otherwise  transfer  any of its  assets,  or cancel or  compromise  any debts or
claims  relating to their  assets,  other than for fair value,  in the  ordinary
course of business, and consistent with past practice;

                           5.1.4    not,  other  than  in  connection  with  the
Reverse  Stock Split,  with  respect to Xtrana,  and the Note  Conversion,  with
respect to AIC,  (i)  declare,  set aside or pay any  dividends on or make other
distributions  in respect of any of its capital  shares,  (ii)  split,  combine,
reclassify or take similar  action with respect to any of its capital  shares or
issue or authorize or propose the  issuance of any other  securities  in respect
of, in lieu of or in substitution for its capital shares (other than the Reverse
Stock  Split),  (iii)  adopt  a plan  of  complete  or  partial  liquidation  or
resolutions  providing for or  authorizing  such  liquidation  or a dissolution,
merger, 


                                      A-31



consolidation, restructuring,  recapitalization or other reorganization, or (iv)
directly or  indirectly  redeem,  repurchase  or  otherwise  acquire any capital
shares or any option with respect thereto,  except for repurchases in connection
with an  existing  option  plan that  result  from a  participant's  use of such
Party's Common Stock to exercise options or pay withholding  taxes in connection
with such exercise;

                           5.1.5    not  sell,  issue,  grant or  authorize  the
issuance or grant of any capital  stock,  other  security  (including  the sale,
transfer  or grant of any  treasury  shares) or any  obligation  convertible  or
exchangeable  for capital stock or any other  security,  except that (i) AIC may
issue up to 7,343,418  shares of AIC Series A-1 Preferred  Stock pursuant to the
Note Conversion,  (ii) AIC may issue AIC Common Stock upon the valid exercise of
stock  options and warrants  outstanding  as of the date of this  Agreement  and
(iii) AIC may grant  options  to  purchase  shares of AIC  Common  Stock at fair
market value in the ordinary course of business consistent with past practice to
its employees, officers, directors and consultants;

                           5.1.6    not  fail  to  use  reasonable   efforts  to
preserve intact its present business organizations,  keep available the services
of its employees (except as expressly provided herein) and preserve its material
relationships with customers, suppliers, licensors, licensees,  distributors and
others,  to the end that its good will and  on-going  business  not be  impaired
prior to the Effective Time;

                           5.1.7    not organize any  subsidiary  or acquire any
capital  stock or  other  equity  securities  of any  Person  or any  equity  or
ownership interest in any business;

                           5.1.8    not enter into any  instrument  which  would
constitute an AIC Contract, as applicable, or enter into any material amendment,
supplement or waiver in respect of any AIC Contract,  in each case except in the
ordinary course of business consistent with past practice;

                           5.1.9    not incur any  severance  pay  obligation by
reason of this Agreement or the transactions contemplated hereby;

                           5.1.10   not  grant or extend  any power of  attorney
other than in the ordinary  course of business  which does not affect a material
part of its business;

                           5.1.11   keep  in full  force  and  effect  insurance
comparable in amount and scope of coverage to insurance now carried by it;

                           5.1.12   not make any material change with respect to
their  business in accounting or bookkeeping  methods,  principles or practices,
except as required by GAAP;

                           5.1.13   promptly  advise the other  Party in writing
of any Material Adverse Effect with respect to it;

                           5.1.14   not agree or  otherwise  commit,  whether in
writing or otherwise,  to do, or take any action or omit to take any action that
would result in, any of the foregoing;


                                      A-32



                           5.1.15   not acquire or agree to acquire,  by merging
or  consolidating  with, by purchasing an equity interest in or a portion of the
assets of, by licensing or by any other manner, any business or any corporation,
partnership,  association or other business organization or division thereof, or
otherwise acquire or agree to acquire any assets of any other Person, except for
the  purchase  of assets from  suppliers  or vendors in the  ordinary  course of
business; or

                           5.1.16   not make any  expenditure  or enter into any
commitment or transaction exceeding $30,000 other than purchases in the ordinary
course of business consistent with past practices.

                  5.2      ADVICE OF CHANGES.  Each Party shall promptly  advise
the other Party in writing of (a) any event occurring  subsequent to the date of
this Agreement that would render any representation or warranty of AIC contained
in SECTION 3 or Xtrana contained in SECTION 4 untrue or inaccurate such that the
condition  set forth in  SECTIONS  7.2 or 7.3 would  not be  satisfied,  (b) any
breach of any covenant or obligation of AIC or Xtrana pursuant to this Agreement
such  that  the  condition  set  forth  in  SECTIONS  7.2 and 7.3  would  not be
satisfied,  (c) any Material  Adverse Change or Effect in AIC or Xtrana,  or (d)
any change,  event,  circumstance,  condition or effect that would reasonably be
expected  to result in a Material  Adverse  Change or Effect on AIC or Xtrana or
cause  any of  the  conditions  set  forth  in  SECTIONS  7.2  or 7.3  not to be
satisfied, including any communication related to the ABI Agreements;  PROVIDED,
HOWEVER,  that the delivery of any notice pursuant to this SECTION 5.2 shall not
be deemed to amend or supplement the AIC or Xtrana Disclosure Schedule.

                  5.3      SEC REPORTS. Xtrana shall use commercially reasonable
efforts  to (a)  cause  the  forms,  reports,  schedules,  statements  and other
documents  required to be filed with the SEC by Xtrana  between the date of this
Agreement and the Effective Time to be filed in a timely manner and (b) remain a
"reporting person" for purposes of the Exchange Act.

         6.       ADDITIONAL AGREEMENTS.

                  6.1      PROMISSORY  NOTE. As soon as reasonably  practicable,
but in any event within two (2) business  days,  following the completion by AIC
of the Note  Conversion and delivery of evidence  satisfactory to Xtrana and its
counsel  that all  obligations  under all  convertible  promissory  notes of AIC
outstanding as of the date hereof have been satisfied in full, Xtrana shall make
a loan to AIC in the amount of $500,000,  in exchange for execution and delivery
of the Promissory Note and the Security  Agreement (as defined in the Promissory
Note) by AIC to Xtrana.  The issuance of the  Promissory  Note, the borrowing of
the amounts thereunder and the grant of the liens contemplated by the Promissory
Note and the Security Agreement by AIC are expressly consented to by the Parties
an shall not constitute a breach of SECTION 5.1 of this Agreement.

                  6.2      AIC  AUDIT.  As soon  as  practicable  following  the
execution  and delivery of this  Agreement but in no event later March 31, 2005,
AIC shall cause its consolidated financial statements for the fiscal years ended
December  31,  2004  and  2003  to  be  audited  (the  "AIC  AUDITED   FINANCIAL
STATEMENTS")  by  a  firm  of  independent  certified  public  accountants  (the
"INDEPENDENT  ACCOUNTANTS") and the Independent Accountants shall have consented
to  the  inclusion  of the  AIC  Audited  Financial  Statements,  including  the
Independent  Accountants'  


                                      A-33



report  thereon,  in the Proxy  Statement to be filed by Xtrana with the SEC and
delivered to the Xtrana stockholders. The AIC Audited Financial Statements shall
comply with all  applicable  requirements  of the Exchange Act and the rules and
regulations  of the SEC so that  they may be  included  by  Xtrana  in the Proxy
Statement  and any other  filings  required  to be made by Xtrana  with the SEC.
Xtrana will pay the fees and  expenses of the  Independent  Accountants  for the
audit of the AIC Audited  Financial  Statements and providing  their consent for
inclusion of the AIC Audited  Financial  Statements in the Proxy  Statement (the
"AUDIT FEES") upon submission of invoices by AIC.

                  6.3      FAIRNESS  HEARING.  Promptly after  execution of this
Agreement,  the Parties will use  commercially  reasonable  efforts to take,  or
cause to be  taken,  all  actions  and to do, or cause to be done,  all  things,
including   preparation   and  filing  with  the  California   Commissioner   of
Corporations  of the documents  required by the  California  Corporations  Code,
including  but not limited to any  required  Permit  Application,  request for a
hearing ("HEARING  REQUEST") or notice of a hearing ("HEARING  NOTICE") pursuant
to Sections 25121 and 25142 of the California  Corporations  Code  (collectively
the "NOTICE  MATERIALS"),  in connection with the Merger and the issuance of the
Merger  Consideration  and the assumption or replacement of the Assumed  Options
and Warrants,  in order to perfect the exemption from  registration  provided by
Section  3(a)(10)  of the  Securities  Act.  Each  Party  will use  commercially
reasonable efforts to have the Permit  Application,  Hearing Request and Hearing
Notice   declared   effective  and  to  obtain  the  permit  of  the  California
Commissioner  of  Corporation  under  the  California   Corporations  Code  (the
"PERMIT") as promptly as practicable after such filing. Each of the Parties will
promptly  provide all  information  relating to their  respective  business  and
operations  necessary  for  inclusion  in the Notice  Materials  to satisfy  all
requirements  of  applicable  state and  federal  securities  laws.  Each of the
Parties will be solely responsible for any statement, information or omission in
the  Notice  Materials  relating  to it  or  its  Affiliates  upon  the  written
information furnished by it or its representatives.

                  6.4      STOCKHOLDER APPROVALS.

                           6.4.1    AIC  SHAREHOLDERS'  APPROVAL.  AIC shall, as
promptly  as  practicable  following  obtaining  the  Permit,  duly  submit this
Agreement  and  the  transactions  contemplated  by  this  Agreement  to the AIC
Shareholders  for approval and  adoption.  In connection  with the Merger,  this
Agreement and the other transactions contemplated hereby, the Board of Directors
of AIC shall (i) recommend to the AIC Shareholders that they consent to, and use
all  commercially  reasonable  efforts  to  obtain  the  approvals  by  the  AIC
Shareholders,   of  the  Merger,  this  Agreement  and  the  other  transactions
contemplated  hereby,  and  (ii)  otherwise  comply  with  all  requirements  of
applicable law and AIC's Articles of Incorporation and Bylaws in connection with
obtaining the AIC  Shareholders'  Approval.  AIC shall prepare and distribute to
the AIC Shareholders a consent  solicitation  disclosure statement in connection
with the solicitation of consents to obtain the AIC Shareholders'  Approval, and
shall  provide  Xtrana a  reasonable  period  of time to review  the  disclosure
statement  prepared in connection  with such consent  solicitation  prior to the
delivery of such disclosure statement to the AIC Shareholders.

                           6.4.2    XTRANA STOCKHOLDERS' MEETING.  Xtrana shall,
as promptly as practicable  following the delivery of the AIC Audited  Financial
Statements,  duly  call,  give  notice  of,  convene  and hold a meeting  of its
stockholders (the "XTRANA  STOCKHOLDERS'  MEETING") 


                                      A-34



for the purpose of approving (a) the Merger  pursuant to this  Agreement and the
other  transactions  contemplated  by  this  Agreement,  (b) the  change  of its
corporate  name  to  Alpha  Innotech  Corp.,  and  (c)  the  authorization  of a
one-for-ten  reverse  split of the Xtrana  Common Stock to effected  immediately
prior the Effective  Time (the "REVERSE STOCK  SPLIT").  In connection  with the
Merger, this Agreement and the other transactions contemplated hereby, the Board
of Directors of Xtrana shall (i)  recommend to the  stockholders  of Xtrana that
they  consent  to,  and use all  commercially  reasonable  efforts to obtain the
approvals by the stockholders of Xtrana,  of the Merger,  this Agreement and the
other  transactions  contemplated  hereby,  and (ii)  otherwise  comply with all
requirements  of applicable law and Xtrana's  Certificate of  Incorporation  and
Bylaws in connection with obtaining the Xtrana Shareholders' Approval.

                  6.5      BOARD OF DIRECTORS AND OFFICERS FOLLOWING CLOSING.

                           6.5.1    BOARD OF  DIRECTORS.  Xtrana  covenants  and
agrees to take all  actions  necessary  such  that,  immediately  following  the
Closing,  the  Board of  Directors  of Xtrana  shall  consist  of the  following
individuals:

                           Nagesh Mhatre, Ph.D.             William Snider
                           Haseeb Chaudhry                  Michael Bick, Ph.D.
                           Darryl Ray, Ph.D.                James Chamberlain

who shall  serve as the  directors  of Xtrana,  each of such  directors  to hold
office, subject to the applicable provisions of the Certificate of Incorporation
and Bylaws of Xtrana, in each case, until their respective successors shall have
been  elected  and  qualified  or until  otherwise  provided  by law.  All other
directors  of Xtrana  immediately  prior to the  Effective  Time  shall  resign,
effective as of the Effective Time.

                           6.5.2    OFFICERS.  Each of the Parties covenants and
agrees to take all  actions  necessary  such  that,  immediately  following  the
Closing,  the officers of Xtrana  immediately  prior to the Effective Time shall
resign and shall be replaced by the following individuals:

                  Haseeb Chaudhry...........  Chief Executive Officer
                  Darryl Ray, Ph.D..........  President, Chief Financial Officer
                                              and Chief Operating Officer

who shall serve as officers of Xtrana  subject to the  applicable  provisions of
the Certificate of Incorporation and Bylaws of Xtrana, in each case, until their
respective successors shall have been duly appointed or until otherwise provided
by law.

                  6.6      ACCESS TO INFORMATION; CONFIDENTIALITY.

                           6.6.1    ACCESS.  Each of Xtrana and AIC  shall,  and
shall (a) cause its officers,  employees,  counsel, financial advisors and other
representatives to, afford to the other Party and its representatives reasonable
access  during  normal  business  hours during the period prior to the Effective
Time to its properties, books, contracts, commitments, personnel and records and
(b) during such period,  cause its officers,  employees and  representatives to,
furnish  


                                      A-35



promptly to the other Party all information concerning its business, properties,
financial condition,  operations and personnel as such other Party may from time
to time  reasonably  request.  Except as required by law, each of AIC and Xtrana
will  hold,  and will  cause  its  respective  directors,  officers,  employees,
accountants,   counsel,   financial  advisors  and  other   representatives  and
Affiliates  to hold,  any  nonpublic  information  in strict  confidence  and in
accordance with the provisions of the  Nondisclosure  Agreement dated August 30,
2004 between AIC and Xtrana.

                           6.6.2    LIMITATIONS.  No  investigation  pursuant to
this SECTION 6.6 shall affect any  representations  or warranties of the parties
herein or the conditions to the obligations of the parties hereto.

                  6.7      COMMERCIALLY  REASONABLE EFFORTS.  Upon the terms and
subject  to the  conditions  set forth in this  Agreement,  each of the  parties
agrees to use its commercially reasonable efforts to take, or cause to be taken,
all actions,  and to do, or cause to be done,  and to assist and cooperate  with
the other  parties  in doing,  all  things  necessary,  proper or  advisable  to
consummate and make effective,  in the most expeditious manner practicable,  the
Merger and the other transactions contemplated by this Agreement. Xtrana and AIC
will use their  commercially  reasonable  efforts and cooperate with one another
(i) in promptly  determining  whether  any  filings  are  required to be made or
consents,  approvals,  waivers,  permits or  authorizations  are  required to be
obtained  (or,  which if not  obtained,  would  result  in an event of  default,
termination  or  acceleration  of any  agreement  or any  put  right  under  any
agreement)  under any  applicable  law or  regulation  or from any  Governmental
Entities or third parties,  including  parties to loan  agreements or other debt
instruments  and  including  such  consents,   approvals,  waivers,  permits  or
authorizations as may be required to transfer the assets and related liabilities
of AIC to the  Surviving  Corporation  in the  Merger,  in  connection  with the
transactions  contemplated  by this  Agreement,  and (ii) in promptly making any
such filings, in furnishing  information required in connection therewith and in
timely   seeking   to  obtain   any  such   consents,   approvals,   permits  or
authorizations.

                  6.8      PUBLIC  ANNOUNCEMENTS.  No party will issue any press
release or other  statements to any third party (other than to their  respective
agents) with respect to the transactions  contemplated by this Agreement without
the express  written  consent of the other parties,  except as may be advised by
counsel is necessary under applicable securities laws.

                  6.9      PREPARATION OF PROXY STATEMENT.  Xtrana shall prepare
and  file  with the SEC  promptly  after  receiving  the AIC  Audited  Financial
Statement, the Proxy Statement with such assistance from AIC as may be required.
If at any time prior to the  Effective  Time of the Merger any event shall occur
that should be set forth in an amendment or a supplement to the Proxy Statement,
Xtrana shall prepare and file with the SEC such  amendment or supplement as soon
thereafter as is reasonably  practicable.  Xtrana and AIC shall  cooperate  with
each other in the  preparation of the Proxy  Statement,  and Xtrana shall notify
AIC of the  receipt  of any  comments  of the  SEC  with  respect  to the  Proxy
Statement and of any requests by the SEC for any amendment or supplement thereto
or for additional  information,  and shall provide to AIC promptly copies of all
correspondence  between the Xtrana or any  representative  of Xtrana and the SEC
with  respect to the Proxy  Statement.  Xtrana  shall  give AIC and its  counsel
reasonable  opportunity  to review  the Proxy  Statement  and all  responses  to
requests for additional 


                                      A-36



information by and replies to comments of the SEC before their being filed with,
or  sent  to,  the  SEC.  Each of  Xtrana  and AIC  agrees  to use  commercially
reasonable efforts, after consultation with the other parties hereto, to respond
promptly to all such  comments of and requests by the SEC and to cause the Proxy
Statement to be mailed to the holders of Xtrana Common Stock entitled to vote at
the Xtrana Stockholders' Meeting at the earliest practicable time.

                  6.10     AMENDING  SCHEDULES.  From time to time  prior to the
Closing, the Parties shall promptly supplement or amend AIC Disclosure Schedules
or Xtrana Disclosure Schedules, as applicable, hereto with respect to any matter
arising after the date of this Agreement  which, if existing or occurring at the
date of this  Agreement,  would have been required to have been set forth in AIC
Disclosure  Schedules  or  Xtrana  Disclosure  Schedules,  as  applicable.  Such
supplement   or   amendment   shall  have  the  effect  of  curing  any  related
misrepresentation or breach of warranty made in connection with the transactions
contemplated by this Agreement;  PROVIDED, HOWEVER, each Party shall have a five
(5)  business  days  following  receipt  of  any  supplemented  or  amended  AIC
Disclosure  Schedules  or Xtrana  Disclosure  Schedules,  as  applicable,  which
supplement or amend the AIC Disclosure Schedules or Xtrana Disclosure Schedules,
as  applicable,  in a material  respect to elect (a) to terminate this Agreement
without  any further  liability  to any other  Party  hereunder,  or (b) in such
non-amending  Party's  sole  discretion,  to  elect  to waive  such  breach  and
consummate the transactions contemplated by this Agreement.

                  6.11     DEFERRED   COMPENSATION.   At  the   Closing,   AIC's
aggregate  obligations  for all  deferred  compensation  shall be not more  than
$550,000 (the "DEFERRED COMPENSATION").  A schedule of the Deferred Compensation
will be  delivered  by AIC to Xtrana  prior the  Closing and will be attached to
this  Agreement as SCHEDULE  6.11.  At or promptly  following  the Closing,  the
Surviving  Corporation  or  Xtrana  may pay up to a  total  of  $100,000  of the
Deferred  Compensation.  Following the Closing,  the Surviving  Corporation  and
Xtrana  shall  be  permitted  to  pay up to a  total  $30,000  of  the  Deferred
Compensation  per month;  PROVIDED,  HOWEVER,  that no  payment of any  Deferred
Compensation  shall be  permitted  to the extent such  payment  would  result in
Xtrana   having  less  than  $1.7  million  in  cash   following   the  payment.
Notwithstanding the foregoing,  all remaining Deferred  Compensation may be paid
by the Surviving Corporation or Xtrana at any time after June 30, 2006.

                  6.12     EXPENSES.   Except  as  expressly  provided  in  this
Agreement, all costs and expenses incurred in connection with this Agreement and
the transactions  contemplated  hereby shall be paid by the Party incurring such
expenses.

                  6.13     NO  SOLICITATION.  Except as previously  agreed to in
writing by the other Party,  neither AIC nor Xtrana nor any of their  respective
officers,  directors,  agents,  representatives,   or  advisors  shall  solicit,
initiate  or  encourage  or take any  action to  facilitate  the  submission  of
inquiries, proposals or offers from any Person relating to any matter concerning
any  merger,  consolidation,  business  combination,  acquisition  of all or any
material  part of the  assets,  business or stock,  recapitalization  or similar
transaction  involving AIC or Xtrana,  respectively,  other than the transaction
contemplated  by this Agreement or any other  transaction  the  consummation  of
which would or could reasonably be expected to impede,  interfere with,  prevent
or delay the Merger or which would or could be  expected to dilute the  benefits
to AIC of the transactions  contemplated  hereby. AIC or Xtrana will immediately
cease and cause to be  


                                      A-37



terminated  any  existing  activities,  discussions  and  negotiations  with any
parties conducted heretofore with respect to any of the foregoing.

                  6.14     DILUTIVE FINANCINGS.  From the Effective Date and for
a period of twelve  (12)  months  thereafter,  Xtrana  shall  not,  directly  or
indirectly,  without the  unanimous  approval of the Xtrana Board of  Directors,
offer or sell  any  shares  of  Xtrana  Common  Stock,  securities  convertible,
exercisable or exchangeable  for Xtrana Common Stock or other equity  securities
of Xtrana at a price per share of Xtrana  Common Stock issued (or issuable  upon
exercise, conversion or exchange of such other securities) less than one hundred
ten percent (110%) of the Market Price;  PROVIDED,  HOWEVER,  that the foregoing
restriction  shall not apply to shares of Xtrana  Common  Stock (or  options  to
purchase such shares of Xtrana Common Stock) issued or issuable at not less than
fair market value to officers,  employees,  or directors of, or consultants  to,
Xtrana  pursuant to any stock  purchase or option plan or other  employee  stock
bonus  arrangement  or other  similar  agreement  as approved by Xtrana Board of
Directors  or  upon  exercise  or  conversion  of  any  securities  convertible,
exercisable or exchangeable  for Xtrana Common Stock  outstanding on the Closing
Date.

                  6.15     TAX  REPORTING.  Consistent  with the  intent  of the
parties hereto,  each of AIC and Xtrana shall treat, and cause its Affiliates to
so treat,  the Merger as a  reorganization  under Section 368(a) with respect to
all Tax Returns, to the extent consistent with law.

                  6.16     FURTHER ASSURANCES. Each of Xtrana and AIC shall, and
shall cause its  Subsidiaries to, execute such further actions as may reasonably
be  requested  by the  other  in  order  to  consummate  the  Merger  and  other
transaction  contemplated by this Agreement and to use  commercially  reasonable
efforts to take or cause to be taken all actions,  and to do or cause to be done
all things, necessary, proper or advisable under applicable laws and regulations
to  consummated  and  make  effective  the  Merger  and the  other  transactions
contemplated  hereby,  including fully  cooperating  with the other in obtaining
required  statutory  approvals and  authorization of any  Governmental  Entities
necessary or advisable to consummate the transactions contemplated hereby.

         7.       CONDITIONS PRECEDENT.

                  7.1      CONDITIONS  TO EACH PARTY'S  OBLIGATION TO EFFECT THE
MERGER. The respective obligations of each Party to effect the Merger is subject
to the  satisfaction  or waiver on or prior to the Closing Date of the following
conditions:

                           7.1.1    STOCKHOLDER     APPROVAL.     The     Xtrana
Stockholders' Approval shall have been obtained.

                           7.1.2    FAIRNESS  HEARING.  Xtrana  shall  have been
issued a permit from the California  Department of Corporations  with respect to
the issuance of Xtrana Common Stock pursuant to this Agreement,  and such permit
shall be in full force and effect.

                           7.1.3    NO INJUNCTIONS  OR RESTRAINTS.  No temporary
restraining order,  preliminary or permanent injunction or other order issued by
any court of competent  jurisdiction  or other legal  restraint  or  prohibition
preventing the consummation of the Merger shall be in effect.


                                      A-38



                           7.1.4    REVERSE  STOCK  SPLIT.   Xtrana  shall  have
effected the Reverse Stock Split.

                  7.2      CONDITIONS TO OBLIGATIONS OF XTRANA.  The obligations
of Xtrana to effect the Merger are further subject to the following conditions:

                           7.2.1    REPRESENTATIONS    AND    WARRANTIES.    The
representations  and warranties of AIC set forth in this Agreement shall be true
and  correct  in all  material  respects,  in each  case as of the  date of this
Agreement  and as of the  Closing  Date as though  made on and as of the Closing
Date,  unless  made as of  another  date,  in which  case they shall be true and
correct in all material respects as of such date.

                           7.2.2    PERFORMANCE OF OBLIGATIONS OF AIC. AIC shall
have performed in all material respects all obligations required to be performed
by it under this Agreement at or prior to the Closing Date.

                           7.2.3    NO MATERIAL  ADVERSE CHANGE.  Since the date
hereof there must have been no event, series of events or the lack of occurrence
thereof which,  singularly or in the aggregate,  could reasonably be expected to
have a Material Adverse Effect on AIC.

                           7.2.4    CONSENTS,  ETC.  Xtrana shall have  received
evidence,  in form  and  substance  reasonably  satisfactory  to it,  that  such
licenses,  permits,  consents,  approvals,  authorizations,  qualifications  and
orders of  Governmental  Entities  and  other  third  parties  as  necessary  in
connection with the transactions contemplated hereby have been obtained.

                           7.2.5    SHAREHOLDER APPROVAL.  The AIC Shareholders'
Approval  shall  have been  obtained  by a vote of  holders  at least 90% of the
issued and outstanding AIC Shares.

                           7.2.6    NO  DISSENTERS.  No AIC  Shareholders  shall
have  dissented to the Merger or be entitled to exercise  dissenters'  rights in
connection with the Merger.

                           7.2.7    NO LITIGATION. There shall not be pending or
threatened by any Governmental  Entity any suit, action or proceeding (or by any
other Person any suit, action or proceeding which has a reasonable likelihood of
success)  challenging or seeking to restrain or prohibit the consummation of the
Merger.

                           7.2.8    CONVERSION   OF   CONVERTIBLE   NOTES.   All
convertible  notes or other  convertible debt obligations of AIC shall have been
converted into equity securities of AIC prior the Closing.

                           7.2.9    DEFERRED   COMPENSATION.   AIC's   aggregate
obligations for all deferred compensation shall be not more than $550,000.

                           7.2.10   LEGAL  OPINION.  Xtrana shall have  received
the legal  opinion  of counsel to AIC,  in  substantially  the form of EXHIBIT F
hereto.

                           7.2.11   OFFICER'S  CERTIFICATE.  Xtrana  shall  have
received an officer's certificate,  substantially in the form of EXHIBIT D, duly
executed on AIC's behalf.


                                      A-39



                           7.2.12   SECRETARY'S  CERTIFICATE.  Xtrana shall have
received a Secretary's certificate, substantially in the form of EXHIBIT E, duly
executed on AIC's behalf.

                           7.2.13   TERMINATION OF AIC  SHAREHOLDER  AGREEMENTS.
Each of (a)  that  certain  Alpha  Innotech  Corporation  Amended  and  Restated
Information and  Registration  Rights Agreement among AIC and the persons listed
on Exhibit A thereto and (b) that certain Alpha Innotech Corporation Amended and
Restated Voting  Agreement among AIC and the AIC  Shareholders (in each case, as
such  agreements  may be  amended  in  connection  with the Note  Conversion  or
otherwise),  shall have been terminated or shall automatically  terminate at the
Effective Time.

                  7.3      CONDITIONS TO  OBLIGATION  OF AIC. The  obligation of
AIC to effect the Merger is further subject to the following conditions:

                           7.3.1    REPRESENTATIONS    AND    WARRANTIES.    The
representations  and warranties of Xtrana set forth in this  Agreement  shall be
true and correct in all material  respects,  in each case as of the date of this
Agreement  and as of the  Closing  Date as though  made on and as of the Closing
Date,  unless  made as of  another  date,  in which  case they shall be true and
correct in all material respects as of such date.

                           7.3.2    PERFORMANCE OF OBLIGATIONS OF XTRANA. Xtrana
shall have  performed in all material  respects all  obligations  required to be
performed by it under this Agreement at or prior to the Closing Date.

                           7.3.3    NO MATERIAL  ADVERSE CHANGE.  Since the date
hereof there must have been no event, series of events or the lack of occurrence
thereof which,  singularly or in the aggregate,  could reasonably be expected to
have a Material Adverse Effect on Xtrana.

                           7.3.4    CONSENTS,   ETC.  AIC  shall  have  received
evidence,  in form  and  substance  reasonably  satisfactory  to it,  that  such
licenses,  permits,  consents,  approvals,  authorizations,  qualifications  and
orders of  Governmental  Entities  and  other  third  parties  as  necessary  in
connection with the transactions contemplated hereby have been obtained.

                           7.3.5    NO LITIGATION. There shall not be pending or
threatened by any Governmental  Entity any suit, action or proceeding (or by any
other Person any suit, action or proceeding which has a reasonable likelihood of
success)  challenging or seeking to restrain or prohibit the consummation of the
Merger.

                           7.3.6    RESIGNATIONS.  Xtrana  shall  deliver to AIC
written  resignations  of the  members  of the  Xtrana  Board of  Directors  not
continuing as directors  following the Effective Time and of all of the officers
of Xtrana, as required by SECTION 6.5.

                           7.3.7    NAME  CHANGE.  Xtrana shall have changed its
corporate name, as of the Closing, to "Alpha Innotech Corp.".

                           7.3.8    LEGAL  OPINION.  AIC shall have received the
legal  opinion  of counsel to  Xtrana,  in  substantially  the form of EXHIBIT I
hereto.


                                      A-40



                           7.3.9    OFFICER'S   CERTIFICATE.   AIC  shall   have
received an officer's certificate,  substantially in the form of EXHIBIT G, duly
executed on Xtrana's behalf.

                           7.3.10   SECRETARY'S  CERTIFICATE.   AIC  shall  have
received a Secretary's certificate, substantially in the form of EXHIBIT H, duly
executed on Xtrana's behalf.

                           7.3.11   CASH AND CASH EQUIVALENTS. The cash and cash
equivalents less current  liabilities of Xtrana on the Closing Date shall be not
less  than  the  Minimum  Closing  Date  Cash  and AIC  shall  have  received  a
certificate from Xtrana to such effect signed by a duly authorized officer.

         8.       TERMINATION.

                  8.1      TERMINATION.  This  Agreement may be  terminated  and
abandoned at any time prior to the Effective Time:

                           8.1.1    by mutual written consent of Xtrana and AIC;

                           8.1.2    by either Xtrana or AIC if any  Governmental
Entity  shall have issued an order,  decree or ruling or taken any other  action
permanently enjoining,  restraining or otherwise prohibiting the Merger and such
order, decree, ruling or other action shall have become final and nonappealable;

                           8.1.3    by either  Xtrana or AIC if the Merger shall
not have been  consummated on or before July 31, 2005 (other than as a result of
the failure of the Party  seeking to  terminate  this  Agreement  to perform its
obligations  under this  Agreement  required to be  performed at or prior to the
Effective Time);

                           8.1.4    by  Xtrana,  if a  Material  Adverse  Change
shall have occurred relative to AIC;

                           8.1.5    by Xtrana, if AIC materially breaches any of
its  representations  and  warranties  contained in this  Agreement or willfully
fails to perform in any material respect any of its material  obligations  under
this Agreement,  which failure or breach is not cured within ten (10) days after
Xtrana has  notified  AIC of its or their  intent to  terminate  this  Agreement
pursuant to this SECTION 8.1.5;

                           8.1.6    by Xtrana,  if the AIC  Shareholders  do not
approve and adopt the Merger and the transactions contemplated by this Agreement
under the CGCL;

                           8.1.7    by AIC, if a Material  Adverse  Change shall
have occurred relative to Xtrana;

                           8.1.8    by AIC, if Xtrana materially breaches any of
its representations  and warranties  contained in this Agreement willfully fails
to perform in any material  respect any of its material  obligations  under this
Agreement,  in each case,  which  failure or breach is not cured within ten (10)
days after AIC has  notified  Xtrana of its or their  intent to  terminate  this
Agreement pursuant to this SECTION 8.1.7; and


                                      A-41



                           8.1.9    by AIC, if the  stockholders  of Xtrana vote
to  reject  the  approval  and  adoption  of the  Merger  and  the  transactions
contemplated  by  this  Agreement  under  the  CGCL  and  the  Delaware  General
Corporation Code.

                  8.2      TERMINATION FEE.

                           8.2.1    If this  Agreement is terminated by: (i) AIC
pursuant to SECTIONS  8.1.3,  8.1.7,  8.1.8 or 8.1.9 or (ii) Xtrana  pursuant to
SECTION  8.1.3,  then Xtrana  shall pay  $100,000  to AIC by offset  against the
obligations of AIC to Xtrana  pursuant to the  Promissory  Note, in each case to
compensate  AIC for,  among other things,  its expenses and  management  time in
pursuing  the   transactions   contemplated  by  this  Agreement  and  for  lost
opportunity costs.

                           8.2.2    If  this  Agreement  is  terminated  for any
reason,  then the Promissory  Note shall become due and payable on the date that
is six  months  from the date of such  termination  and in  accordance  with its
terms.

                  8.3      EFFECT OF TERMINATION. In the event of termination of
this  Agreement  by either  AIC or Xtrana  as  provided  in  SECTION  8.1,  this
Agreement shall forthwith become void and have no effect,  without any liability
or  obligation  on the part of Xtrana or AIC,  other than the  provisions of the
last sentence of SECTION 6.6.1,  SECTION 8.2,  SECTION 8.4,  SECTION 10 and this
SECTION 8.3.  Nothing  contained in this Section shall relieve any Party for any
breach of the representations,  warranties, covenants or agreements set forth in
this Agreement.

                  8.4      RETURN OF DOCUMENTS.  In the event of  termination of
this Agreement for any reason, Xtrana and AIC will return to the other Party all
of the other Party's  documents,  work papers,  and other  materials  (including
copies)  relating to the  transactions  contemplated in this Agreement,  whether
obtained before or after  execution of this  Agreement.  Xtrana and AIC will not
use any  information  so obtained  from the other Party for any purpose and will
take  all  reasonable  steps  to  have  such  other  Party's   information  kept
confidential.

         9.       INDEMNIFICATION AND RELATED MATTERS.

                  9.1      SURVIVAL. All representations,  warranties, covenants
and  agreements of contained in this Agreement or in any  certificate  delivered
pursuant to this  Agreement  shall  survive  the Closing for a period  ending on
March 31, 2006.

                  9.2      TIME  LIMITATIONS.  Neither Xtrana nor AIC shall have
any  liability  (for   indemnification   or  otherwise)   with  respect  to  any
representation or warranty, or agreement to be performed and complied with prior
to the  Effective  Time,  unless  on or  before  March  31,  2006  (the  "CLAIMS
DEADLINE"),  the  indemnifying  party is given  written  notice of a claim  with
respect  thereto,  in accordance with SECTION 9.5,  specifying the factual basis
therefor in  reasonable  detail to the extent  then known by the party  claiming
indemnification hereunder.

                  9.3      INDEMNIFICATION.

                           9.3.1    BY XTRANA.  Subject to SECTION  9.4,  Xtrana
shall  indemnify  and hold  harmless  the AIC  Indemnified  Parties,  and  shall
reimburse the AIC Indemnified Parties for, any loss,  liability,  claim, damage,
expense (including, but not limited to, costs of investigation


                                      A-42



and  defense  and   reasonable   attorneys'   fees)  or   diminution   of  value
(collectively, "DAMAGES") arising from or in connection with (a) any inaccuracy,
in any material respect,  in any of the representations and warranties of Xtrana
in this Agreement or in any  certificate  delivered by Xtrana to AIC pursuant to
this  Agreement,  (b) any failure by Xtrana to perform or comply in any material
respect with any  agreement in this  Agreement,  (c) any claim by any Person for
brokerage for finder's fees or  commissions  or similar  payments based upon any
agreement  or  understanding  alleged to have been made by any such  Person with
Xtrana (or any Person  acting on their  behalf)  in  connection  with any of the
transactions  contemplated  by this Agreement,  or (d) any  litigation,  action,
claim, proceeding or investigation by any third party relating to or arising out
of the business or operations of Xtrana, or the actions of Xtrana,  its officers
or directors or any holder of Xtrana capital stock prior to the Effective  Time,
including  any Damages  relating  to or arising  out of a claim by ABI,  against
Xtrana for indemnification pursuant to the Assignment Agreement to the extent is
relates to a breach  occurring prior to the Effective Time;  PROVIDED,  HOWEVER,
AIC shall not be  entitled to  indemnification  from  Xtrana  hereunder  for any
Damages  arising from or in  connection  with a claim by ABI against  Xtrana for
indemnification  under the  Assignment  Agreement  for a breach of any  covenant
contained in the Assignment  Agreement occurring after the Effective Time or for
recovery of any costs  incurred by ABI as a result of a any such  breach.  After
the Effective Time the Xtrana Post-Merger  Representative shall act as the agent
of the Xtrana  Indemnified  Parties for purposes of representing  and protecting
their  interests under this SECTION 9. The Parties shall cooperate with Xtrana's
Post-Merger  Representative in connection with the reasonable performance of its
responsibilities hereunder, including by providing it with access to information
about Xtrana and the Surviving  Corporation that is reasonably  necessary for it
to determine whether a claims for indemnification hereunder should be made.

                           9.3.2    BY AIC.  Subject to SECTION  9.4,  AIC shall
indemnify and hold harmless the Xtrana Indemnified  Parties, and shall reimburse
the Xtrana  Indemnified  Parties for, any Damages  arising from or in connection
with (a) any inaccuracy,  in any material respect, in any of the representations
and warranties of AIC in this Agreement or in any  certificate  delivered by AIC
to Xtrana  pursuant  to this  Agreement,  (b) any  failure  by AIC to perform or
comply in any material  respect with any  agreement in this  Agreement,  (c) any
claim by any Person for brokerage for finder's  fees or  commissions  or similar
payments based upon any agreement or understanding  alleged to have been made by
any such Person with AIC (or any Person  acting on their  behalf) in  connection
with  any of  the  transactions  contemplated  by  this  Agreement,  or (d)  any
litigation,  action,  claim,  proceeding  or  investigation  by any third  party
relating to or arising out of the business or  operations of AIC, or the actions
of AIC its officers or directors or any holder of AIC capital stock prior to the
Effective Time,  including without limitation any Damages relating to or arising
out of any  claim  for  patent  infringement  by or on  behalf  of  Oxford  Gene
Technology  (relating to U.S. Patents Nos. 5,436,327,  6,054,270,  5,700,637 and
6,307,039),  Perkin-Elmer Life Science (relating to U.S. Patent No.  4,874,492),
or Clare Chemical  Research,  Inc.  (relating to U.S.  Patents No. 6,512,236 and
6,198,107).  After the Effective Time the AIC Post-Merger  Representative  shall
act as the agent of the AIC Indemnified Parties for purposes of representing and
protecting  their  interests  under this SECTION 9. The Parties shall  cooperate
with  AIC's  Post-Merger   Representative  in  connection  with  the  reasonable
performance of its  responsibilities  hereunder,  including by providing it with
access  to  information  about  Xtrana  or the  Surviving  Corporation  that  is
reasonably  necessary for it to determine  whether a claims for  indemnification
hereunder should be made.


                                      A-43



                  9.4      LIMITATION  ON  CLAIMS.  No claims  shall be  payable
under this SECTION 9 with respect to any Damages  unless and until the aggregate
Damages  owing  under this  SECTION 9 in respect of any  Indemnitee  (as defined
below)  exceed  $100,000,  in which case the  Indemnitee  shall be  entitled  to
indemnification  from the  indemnifying  party for all Damages without regard to
such threshold.  As used herein,  an  "INDEMNITEE"  means one or more of the AIC
Indemnified  Parties or the Xtrana  Indemnified  Parties to the extent that such
parties  seek  indemnification  from the other  pursuant to this  SECTION 9. The
Xtrana Indemnified Parties' sole and exclusive remedy for indemnification claims
against  AIC under  this  Agreement  shall  consist  of its right to set off any
Damages against the Holdback  Shares and the AIC  Indemnified  Parties' sole and
exclusive remedy for indemnification  claims against Xtrana under this Agreement
shall consist of their right to receive additional shares of Xtrana Common Stock
out of the AIC Indemnification  Shares, in either case pursuant to the procedure
described in SECTION 9.5 hereof.  No claims shall be payable with respect to any
representation  or warranty  unless  such claim is  asserted  in writing  within
twelve (12)  months  after the Closing  Date (the  "INDEMNIFICATION  TERMINATION
PERIOD"). For the purposes of this SECTION 9.4 a month shall be deemed to elapse
at 5:00 p.m.  California  time on the day of the month on which the Closing Date
occurred.  (For  example,  if the Effective  Time occurs on March 15, 2005,  the
sixth month would be deemed to elapse at 5:00 p.m.  California time on September
15, 2005.) All Holdback Shares not then subject to indemnification  claims under
SECTION  9.3.2  hereof  shall be released to the AIC's  pre-Merger  shareholders
pursuant  to the  terms  of the  Escrow  Agreement  upon the  expiration  of the
Indemnification  Termination  Period.  All AIC  Indemnification  Shares not then
subject to  indemnification  claims under SECTION 9.3.1 hereof shall be released
from escrow and permanently  cancelled pursuant to the Escrow Agreement upon the
expiration of the Indemnification Termination Period.

                  9.5      COMPENSATION FOR INDEMNIFIED LOSSES.

                           9.5.1    NOTICE   OF   CLAIM.    Losses   for   which
Indemnitees are entitled to  indemnification  under this SECTION 9 shall,  after
the  Merger,  be  reimbursed  as  determined  pursuant to this  SECTION  9.5. To
initiate a claim,  the Indemnitee  shall deliver a notice of claim to the Xtrana
Post-Merger Representative or the AIC Post-Merger Representative, as applicable.
The notice shall  include a description  in reasonable  detail of the amount and
nature of any Damages  that the  Indemnitee  claims have been  suffered  and the
amount thereof sought to be indemnified. If the party from which indemnification
is sought decides to dispute the claim, it shall,  within thirty (30) days after
receipt of the notice or claim, give  counter-notice  to the Indemnitee  setting
forth in reasonable  detail the basis for disputing the claim. If, within thirty
(30)  days   after  the  giving  of  a   counter-notice   by  party  form  which
indemnification  is sought,  the parties  have not reached  agreement  as to the
indemnification  claim in question,  then the claim for indemnification shall be
submitted  to and be  settled  by  arbitration  as  provided  below.  If the AIC
Post-Merger  Representative submitted the claim, and no counter-notice is given,
the AIC  Indemnified  Party shall  receive  such  number of AIC  Indemnification
Shares that when  multiplied  by the Market  Price is equal to the amount of the
award,  up to a  maximum  of  the  number  of  AIC  Indemnification  Shares  not
previously  issued  pursuant  to  this  SECTION  9.5.  If  Xtrana's  Post-Merger
Representative  submitted the claim, and no  counter-notice is given, the number
of Holdback Shares shall be permanently  reduced by that number of shares,  that
when multiplied by the Market Price is equal to the amount of the award, up to a
maximum of the 


                                      A-44



number of Holdback Shares not previously  cancelled and removed from escrow as a
result of indemnification awards pursuant to this SECTION 9.

                           9.5.2    INDEMNIFICATION    AWARDS.    If   an    AIC
Indemnified  Party is entitled  to an  indemnification  award,  such party shall
receive such number of AIC  Indemnification  Shares that when  multiplied by the
Market Price is equal to the amount of the award,  up to a maximum of the number
of AIC Indemnification  Shares not previously issued pursuant to this SECTION 9.
If an Xtrana Indemnified Party is entitled to an indemnification award, it shall
permanently  reduce the number of  Holdback  Shares by that  number of  Holdback
Shares,  that when  multiplied by the Market Price is equal to the amount of the
award, up to a maximum of the number of Holdback Shares not previously cancelled
and removed from escrow as a result of  indemnification  awards pursuant to this
SECTION 9.

                  9.6      SOLE REMEDY.  Other than claims based on fraud or for
specific  performance,  injunctive  or other  equitable  relief,  the  indemnity
provided in this SECTION 9 shall be the sole and exclusive remedy of the parties
hereto at law or equity for any matter covered by SECTION 9.3.

                  9.7      INDEMNIFICATION OF POST-MERGER REPRESENTATIVES.  Each
of the  Post-Merger  Representatives  shall be indemnified  and held harmless by
Xtrana and the Surviving  Corporation  for all actions taken in connection  with
this SECTION 9 to the fullest extent permitted by applicable law.

         10.      GENERAL PROVISIONS.

                  10.1     POST-MERGER REPRESENTATIVES.

                           10.1.1   AIC POST-MERGER REPRESENTATIVE.  By approval
of this  Agreement,  each of the AIC  Shareholders  appoints the AIC Post-Merger
Representative as the true and lawful agent and  attorney-in-fact of such Person
with full  powers of  substitution  to act in the name,  place and stead of such
Person with respect to the  performance on behalf of such Person under terms and
provisions of this Agreement and the Escrow  Agreement,  as the same may be from
time to time amended,  and to do or refrain from doing all such further acts and
things, and to execute all such documents, as the AIC Post-Merger Representative
shall deem necessary or appropriate in connection  with any of the  transactions
contemplated under this Agreement and the Escrow Agreement.

                           10.1.2   XTRANA   POST-MERGER   REPRESENTATIVE.    By
approval of this Agreement,  each of the  stockholders of Xtrana  approving this
Agreement and the Merger appoints the Xtrana  Post-Merger  Representative as the
true and lawful  agent and  attorney-in-fact  of such Person with full powers of
substitution to act in the name,  place and stead of such Person with respect to
the  performance  on behalf of such Person  under terms and  provisions  of this
Agreement  and the  Escrow  Agreement,  as the  same  may be  from  time to time
amended,  and to do or refrain from doing all such further acts and things,  and
to execute all such documents,  as the Xtrana Post-Merger  Representative  shall
deem  necessary  or  appropriate  in  connection  with  any of the  transactions
contemplated under this Agreement and the Escrow Agreement.


                                      A-45



                           10.1.3   RELIANCE   ON   EXPERTS;    LIMITATION    OF
LIABILITY.  Each  of the  Post-Merger  Representative  shall  act  for  the  AIC
Shareholders or Xtrana  stockholders,  as applicable,  on all of the matters set
forth in this Agreement and the Escrow  Agreement in the manner such Post-Merger
Representative  believes to be in the best interest of such  Persons;  PROVIDED,
HOWEVER,  that (i) such Post-Merger  Representative shall be entitled to rely on
the  advice  of  counsel,   public  accountants  or  other  independent  experts
experienced  in the matter at issue,  and any error in  judgment or other act or
omission  of such  Post-Merger  Representative  pursuant to such advice will not
subject such  Post-Merger  Representative  to liability to any such Person,  and
(ii) such Post-Merger Representative shall not be responsible to any such Person
for any loss or damage any such  Person may suffer by reason of the  performance
by such Post-Merger  Representative of such Person's duties under this Agreement
or the  Escrow  Agreement,  other  than  loss or  damage  arising  from  willful
misconduct in the performance of such Post-Merger  Representative's duties under
this Agreement or the Escrow Agreement.

                  10.2     AMENDMENT.  This  Agreement may not be amended except
by an instrument in writing signed on behalf of each of the Parties.

                  10.3     EXTENSION;  WAIVER.  The  Parties  may (a) extend the
time for the  performance  of any of the  obligations or other acts of the other
Parties,  (b) waive  any  inaccuracies  in the  representations  and  warranties
contained  in this  Agreement  or in any  document  delivered  pursuant  to this
Agreement,  or (c) waive  compliance  with any of the  agreements  or conditions
contained in this  Agreement.  Any  agreement on the part of a Party to any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such  Party.  The  failure of any Party to assert any of its
rights under this  Agreement or otherwise  shall not constitute a waiver of such
rights.

                  10.4     NOTICES. All notices,  requests,  claims, demands and
other  communications  under this  Agreement  shall be in  writing  and shall be
deemed given if delivered  Personally or sent by facsimile,  electronic mail, or
overnight courier  (providing proof of delivery) to the parties at the following
addresses  (or at such other  address for a Party as shall be  specified by like
notice):

                  if to AIC, to:

                  Alpha Innotech Corporation
                  2401 Merced St.
                  San Leandro, CA 94577
                  Attn:  Chief Executive Officer
                  Fax: 510-483-3227

                  with a copy to (which shall not constitute notice):

                  Heller Ehrman White & McAuliffe LLP
                  4350 La Jolla Village Drive, 7th Floor
                  San Diego, CA 92122
                  Attn: Stephen Ferruolo, Esq.
                  Fax: (858) 450-8499


                                      A-46



                  if to Xtrana or MergerCo, to:

                  Xtrana, Inc.
                  c/o James H. Chamberlain, CEO
                  733 Spruce Meadow Place
                  Thousand Oaks, CA 91362
                  Fax:  (805) 494-0832

                  with a copy to (which shall not constitute notice):

                  Stubbs Alderton & Markiles, LLP
                  15821 Ventura Blvd., Suite 525
                  Encino, CA 91436
                  Attn: Scott Alderton, Esq.
                  Fax:  (818) 444-4520

                  10.5     INTERPRETATION.  When a  reference  is  made  in this
Agreement  to a  Section,  Exhibit or  Schedule,  such  reference  shall be to a
Section  of, or an Exhibit or  Schedule  to,  this  Agreement  unless  otherwise
indicated.  The headings  contained in this Agreement are for reference purposes
only and  shall not  affect in any way the  meaning  or  interpretation  of this
Agreement.  Whenever the words "include",  "includes" or "including" are used in
this  Agreement,  they  shall be deemed  to be  followed  by the words  "without
limitation".

                  10.6     ENTIRE AGREEMENT; NO THIRD-PARTY BENEFICIARIES.  This
Agreement  and the other  agreements  referred to herein  constitute  the entire
agreement,  and supersede all prior agreements and understandings,  both written
and  oral,  among  the  parties  with  respect  to the  subject  matter  of this
Agreement.  Except as expressly provided herein,  this Agreement is not intended
to confer upon any Person other than the parties any rights or remedies.

                  10.7     GOVERNING LAW. This  Agreement  shall be governed by,
and construed in accordance with, the laws of the State of Delaware,  regardless
of the laws that might otherwise govern under applicable principles of conflicts
of laws thereof.

                  10.8     ASSIGNMENT.  Neither  this  Agreement  nor any of the
rights,  interests or  obligations  under this Agreement  shall be assigned,  in
whole or in part, by operation of law or otherwise by any of the parties without
the  prior  written  consent  of the other  parties.  Subject  to the  preceding
sentence,  this Agreement will be binding upon,  inure to the benefit of, and be
enforceable by, the parties and their respective successors and assigns.

                  10.9     ENFORCEMENT.   The  parties  agree  that  irreparable
damage may occur in the event that any of the  provisions of this Agreement were
not  performed  in  accordance  with  their  specific  terms  or were  otherwise
breached. It is accordingly agreed that the parties shall be entitled to seek an
injunction or injunctions  to prevent  breaches of this Agreement and to enforce
specifically  the terms and provisions of this Agreement in any federal or state
court  located in the State of  Delaware,  this being in  addition  to any other
remedy to which they are entitled at law or in equity. In addition,  each of the
parties hereto (a) consents to submit itself to the personal jurisdiction of any
court  sitting in the State of Delaware  in the event any dispute  arises out of
this 


                                      A-47



Agreement  or any of the  transactions  contemplated  by this  Agreement  to the
extent such courts would have subject matter  jurisdiction  with respect to such
dispute and (b) agrees that it will not attempt to deny or defeat such  personal
jurisdiction or venue by motion or other request for leave from any such court.

                  10.10    SEVERABILITY.  Whenever  possible,  each provision or
portion of any provision of this Agreement will be interpreted in such manner as
to be effective and valid under  applicable  law but if any provision or portion
of  any  provision  of  this  Agreement  is  held  to  be  invalid,  illegal  or
unenforceable   in  any  respect  under  any  applicable  law  or  rule  in  any
jurisdiction,  such invalidity,  illegality or unenforceability  will not affect
any other provision or portion of any provision in such  jurisdiction,  and this
Agreement will be reformed,  construed and enforced in such  jurisdiction  as if
such invalid, illegal or unenforceable provision or portion of any provision had
never been contained herein.

                  10.11    SCHEDULES AND EXHIBITS. The Schedules and Exhibits to
this Agreement are hereby incorporated into this Agreement and are hereby made a
part of this Agreement as if set out in full in this Agreement.

                  10.12    COUNTERPARTS.  This  Agreement may be executed in one
or more  identical  counterparts,  all of which shall be considered  one and the
same  instrument and shall become  effective when one or more such  counterparts
shall have been  executed  by each of the  parties  and  delivered  to the other
parties.  Delivery of a copy of this Agreement bearing an original  signature by
facsimile  transmission,  by  electronic  mail  in  "portable  document  format"
(".pdf")  form,  or by any other  electronic  means  intended  to  preserve  the
original  graphic and  pictorial  appearance  of a document,  will have the same
effect  as  physical  delivery  of  the  paper  document  bearing  the  original
signature.

                            [SIGNATURE PAGE FOLLOWS.]


                                      A-48



         IN WITNESS  WHEREOF,  the undersigned have caused their duly authorized
officers to execute this Agreement as of the date first above written.



                                  ALPHA INNOTECH CORPORATION


                                  By:      /s/ Haseeb Chaudhry
                                      ----------------------------------------
                                           Name:    Haseeb Chaudhry
                                           Title:   Chief Executive Officer


                                  XTRANA, INC.


                                  By:      /s/ James H. Chamberlain
                                      ----------------------------------------
                                           Name:    James H. Chamberlain
                                           Title:   Chief Executive Officer


                                  AIC MERGER CORPORATION


                                  By:       /s/ James H. Chamberlain
                                      ----------------------------------------
                                           Name:    James H. Chamberlain
                                           Title:   President


                                      A-49




                                    EXHIBIT A

                             SECURED PROMISSORY NOTE

$500,000.00                                                    December 16, 2004

         FOR VALUE RECEIVED,  the  undersigned,  ALPHA INNOTECH  CORPORATION,  a
California  corporation (the "MAKER"),  hereby promise to pay to XTRANA, INC., a
Delaware  corporation (the "PAYEE" and, together with the Maker, the "PARTIES"),
in lawful  money of the United  States of  America,  the  principal  sum of FIVE
HUNDRED  THOUSAND  DOLLARS  AND NO CENTS  ($500,000.00).  Except as  provided in
Paragraph 1.2 below, no interest shall accrue on this Note.

         This  Note has been  executed  and  delivered  in  connection  with the
Agreement  and Plan of Merger,  dated as December 14, 2004,  by and among Maker,
Payee and AIC Merger  Corporation  (the "MERGER  AGREEMENT").  The Parties agree
that, in the event that Payee becomes  obligated to pay Maker a termination  fee
pursuant to Section 8.2.1 of the Merger Agreement, such termination fee shall be
deemed  to  reduce  the  principal  amount  of  this  Note  as of  the  date  of
termination.

1.       PAYMENT

         1.1      MATURITY DATE.  Upon any  termination of the Merger  Agreement
pursuant  to Section  8.1  thereof,  to the extent  outstanding  and  subject to
Section 5 hereof,  the  entire  unpaid  principal  balance  of this Note and any
accrued but unpaid  interest  thereon  shall  become due and payable on the date
which is six (6) months following the date of such termination.

         1.2      INTEREST.  In the  event  of  any  termination  of the  Merger
Agreement pursuant to Section 8.1 of the Merger Agreement,  interest will accrue
on the unpaid principal balance from time to time outstanding,  retroactive from
the date of issuance of this Note until the  principal  balance is paid in full,
at a rate of eight  percent (8%) per annum (the  "INTEREST  RATE").  In addition
(but without duplication),  from and after the occurrence of an Event of Default
(as defined  below)  interest will accrue on the unpaid  principal  balance from
time to time  outstanding,  from the date of such  occurrence  of such  Event of
Default  until  the date  when  such  Event  of  Default  is cured or until  the
principal balance is paid in full,  whichever is earlier,  at the Interest Rate.
Interest at the Interest  Rate will be  calculated on the basis of a year of 365
or 366 days, as applicable, and charged for the actual number of days elapsed.

         1.3      PREPAYMENT; APPLICATION OF PAYMENTS. Maker will have the right
to prepay all or any portion of the outstanding principal amount without premium
or penalty.  All  payments on this Note will be applied  first to the payment of
accrued interest (if any) before being applied to the payment of principal.

         1.4      MANNER OF PAYMENT. Principal,  interest, and all other amounts
due  under  this Note will be  payable,  in U.S.  dollars,  by  electronic  wire
transfer  of  immediately  available  funds  pursuant  to  written  instructions
provided to Maker by Payee. If any payment of principal or interest on this Note
is due on a day that is not a Business Day, such payment will be due on the next
succeeding  Business  Day.  "BUSINESS  DAY" means any day other than a Saturday,
Sunday or legal holiday in the State of  California.  All amounts due from Maker
to  Payee  under  this  Note  will  be  made  without  benefit  of  any  setoff,
counterclaim or other defense.

2.       DEFAULTS

         2.1      EVENTS OF DEFAULT.  The  occurrence  of any one or more of the
following  events  with  respect  to Maker will  constitute  an event of default
hereunder ("EVENT OF DEFAULT"):

                  (a)      If  Maker  fails  to pay  when  due  any  payment  of
         principal or interest on this Note and such failure  continues for five
         (5) days after such payment becomes due;


                                      A-50



                  (b)      If Maker is in material breach of any other provision
         of this Note or any provision of the Merger Agreement,  which breach is
         not cured within ten (10) days after written  notice from Payee of such
         breach;

                  (c)      If  Maker  shall  default  in  the   performance   or
         observance of any obligation or condition with respect to  indebtedness
         in excess of  $100,000  or any other  event  shall  occur or  condition
         exist,  if the  effect  of  such  default,  event  or  condition  is to
         accelerate the maturity of such  indebtedness  or is such  indebtedness
         shall  become or be declared to be due and payable  prior to its stated
         maturity as a result of the foregoing; or

                  (d)      If  Maker,  under the laws of any  jurisdiction:  (i)
         consents  to  the  appointment  of  a  trustee,   receiver,   assignee,
         liquidator or similar official; (ii) makes a general assignment for the
         benefit of its creditors;  or (iii) institutes a proceeding,  or has an
         involuntary  proceeding  instituted  against it,  seeking a judgment of
         insolvency,   bankruptcy,   or  any  other  similar  relief  under  any
         bankruptcy,  insolvency,  or other  similar  law  affecting  creditors'
         rights that is not dismissed within ninety (90) days thereafter.

         2.2      NOTICE BY MAKER.  Maker will  notify  Payee in writing  within
five (5) days  after the  occurrence  of any  Event of  Default  of which  Maker
acquires knowledge.  If Payee is not so notified,  said failure to notify is, in
and of itself, a default.

         2.3      REMEDIES.  Subject to the  provisions of Paragraph 4.2 hereof,
upon the occurrence of an Event of Default  hereunder  (unless waived in writing
by Payee), Payee may, at its option, (a) by written notice to Maker, declare the
entire unpaid principal balance of this Note, together with all accrued interest
thereon,  immediately  due and  payable or (b)  exercise  any and all rights and
remedies  available to it under  applicable law,  including the right to collect
from Maker all sums due under this Note.  Maker will pay all costs and  expenses
incurred by or on behalf of Payee in connection with Payee's  exercise of any or
all of its rights and remedies under this Note, including attorneys' fees.

3.       SECURITY AGREEMENT.

         Maker's  obligations  under this Note are secured by the collateral set
forth in that certain Security Agreement,  dated as of the date hereof,  between
Maker and Payee (the "SECURITY AGREEMENT"). Concurrently with the termination of
this Note pursuant to Paragraph 5 below, the Security  Agreement shall terminate
and be of no further  force and effect (other than the Parties'  obligations  to
execute and deliver such documents as be necessary or appropriate to release any
lien upon or security interest in the collateral secured thereby).  The security
interest of Maker in the  Collateral  is, and at all times shall be,  junior and
subordinate to the security interest of Senior Lender.

4.       SENIOR SUBORDINATION

         4.1      DEFINITION OF SENIOR INDEBTEDNESS.  For purposes of this Note,
the term "SENIOR  INDEBTEDNESS" shall mean the principal of and premium, if any,
and  interest on  indebtedness  of Maker under that  certain  Loan and  Security
Agreement,  dated March 9, 2004,  between Maker and BFI Business Finance ("BFI")
or its assigns ("SENIOR LENDER") and money borrowed from other commercial banks,
equipment lessors, or other financial  institutions under a secured or unsecured
line of credit, term loan or equipment lease approved by BFI.

         4.2      SUBORDINATION TO SENIOR INDEBTEDNESS. The payment of principal
and  interest  on this Note is  subordinated  in right of  payment  to the prior
payment in full of all Senior Indebtedness of Maker, whether outstanding on this
date or thereafter. In the event of any insolvency or bankruptcy proceedings, or
any  receivership,  liquidation,  reorganization,  or other similar  proceedings
relative to Maker,  or to its property,  or in the event of any  proceedings for
voluntary  liquidation,  dissolution,  or other  winding  up of Maker,  then the
holders of Senior  Indebtedness  will be entitled to receive  payment in full of
all principal and interest on all Senior  Indebtedness  before Maker is entitled
to  receive  any  payment  on account of  principal  or  interest  on this Note.
NOTWITHSTANDING  THE FOREGOING,  Maker may make scheduled  payments of principal
and interest  under this Note as provided in Section 1 hereof,  as and when such
payments  are due and  payable,  UNLESS AND UNTIL Payee and Maker have  received
written  notice from the Senior  Lender that an event of default has occurred or
been declared under either (i) the Secured 


                                      A-51



Promissory  Note dated August 26, 2004 in the  principal  amount of  $300,000.00
issued  by Maker to  Senior  Lender  (unless  Maker  has paid in full all of its
obligations  under such Secured  Promissory  Note) or (ii) that certain Loan and
Security Agreement, dated March 9, 2004, between Maker and BFI.

         4.3      SENIOR TO OTHER INDEBTEDNESS.  Subject to the prior payment in
full of the Senior Indebtedness,  Payee shall receive payments from Maker, prior
to any other creditors, until the obligations related to this Note are satisfied
in full,  PROVIDED,  HOWEVER,  that the  foregoing  will not apply to  Permitted
Indebtedness  (as defined below).  Notwithstanding  any  subordination to Senior
Indebtedness as described above,  Maker will cooperate with Payee to ensure that
payment on this Note is (to the extent commercially practicable and permitted by
applicable  law) senior to all other existing and future debt of Maker.  For the
purpose of this Paragraph 4.3, "PERMITTED  INDEBTEDNESS" shall mean indebtedness
to trade creditors incurred in the ordinary course of business.

         4.4      NO IMPAIRMENT.  This Paragraph 4 is not intended to impair, as
between Maker,  its creditors  (other than with respect to the holders of Senior
Indebtedness)  and  Payee,  the  unconditional  obligation  of  Maker to pay the
principal of and interest on this Note. Nothing in this Note shall prevent Payee
from exercising all remedies otherwise  permitted by applicable law upon default
of this  Note,  subject  to the  rights,  if any,  of the  holders of the Senior
Indebtedness in respect to cash, property,  or securities of Maker received upon
exercise of any such remedies.

5.       TERMINATION

         This  Note,  and the  rights and  obligations  under  this Note,  shall
automatically terminate upon the Closing (as defined in the Merger Agreement).

6.       MISCELLANEOUS

         6.1      WAIVER. Maker hereby waives presentment,  demand, protest, and
notice of dishonor and protest.

         6.2      ASSIGNMENT.  Neither  Party shall assign or transfer this Note
or any of its  rights or  obligations  under  this Note  without  express  prior
written  consent of the other Party,  which  consent  shall not be  unreasonably
withheld,  conditioned  or delayed,  provided that Payee may assign this Note to
any person or entity which  acquires all or  substantially  all of the assets of
Payee without the written consent of Payee.

         6.3      SUCCESSORS.   All  of  the   terms,   agreements,   covenants,
representations,  warranties,  and conditions of this Note are binding upon, and
inure to the benefit of and are enforceable by, the Parties and their respective
successors.  If the principal business,  operations or a majority or substantial
portion of the assets of Maker are assigned,  conveyed,  allocated, or otherwise
transferred, including by sale, merger, consolidation, amalgamation, conversion,
or similar  transactions,  such receiving  person or persons will  automatically
become bound by and subject to the provisions of this Note,  and Maker,  subject
to  satisfaction  of the  provisions  of  Paragraph  6.2  above  will  cause the
receiving person or persons to expressly assume its obligations hereunder.

         6.4      NOTICES.  All  notices,  requests,  claims,  demands and other
communications  under this  Agreement  shall be in  writing  and shall be deemed
given  if  delivered  personally  or  sent by  facsimile,  electronic  mail,  or
overnight courier  (providing proof of delivery) to the parties at the following
addresses  (or at such other  address for a Party as shall be  specified by like
notice):

                           if to Maker, to:

                           Alpha Innotech Corporation
                           2401 Merced St.
                           San Leandro, CA 94577
                           Attn:  Chief Executive Officer
                           Fax: 510-483-3227


                                      A-52



                           with a copy to (which shall not constitute notice):

                           Heller Ehrman White & McAuliffe LLP
                           4350 La Jolla Village Drive, 7th Floor
                           San Diego, CA 92122
                           Attn: Stephen Ferruolo, Esq.
                           Fax: (858) 450-8499

                           if to Payee, to:

                           Xtrana, Inc.
                           c/o James H. Chamberlain, CEO
                           733 Spruce Meadow Place
                           Thousand Oaks, CA 91362
                           Fax:  (805) 494-0832

                           with a copy to (which shall not constitute notice):

                           Stubbs Alderton & Markiles, LLP
                           15821 Ventura Blvd., Suite 525
                           Encino, CA 91436
                           Attn: Scott Alderton, Esq.
                           Fax:  (818) 444-4520

         6.5      TIME.  Time is of the essence in the performance of this Note.

         6.6      HEADINGS.  The article and section headings  contained in this
Note are  inserted  for  convenience  only and  will not  affect  in any way the
meaning or interpretation of this Note.

         6.7      GOVERNING   LAW.  This  Note  and  the   performance   of  the
obligations  of the  Parties  hereunder  will be governed  by and  construed  in
accordance  with the laws of the State of  California,  without giving effect to
any choice of law principles.

         6.8      AMENDMENTS   AND   WAIVERS.   No   amendment,    modification,
replacement,  termination, or cancellation of any provision of this Note will be
valid,  unless the same will be in  writing  and  signed by the each  Party.  No
waiver by any Party of any  default,  Event of  Default,  misrepresentation,  or
breach of warranty or covenant  hereunder,  whether  intentional  or not, may be
deemed  to  extend to any prior or  subsequent  default,  misrepresentation,  or
breach of warranty or covenant hereunder or affect in any way any rights arising
because of any prior or subsequent such occurrence.

         6.9      SEVERABILITY.  The  provisions  of this  Note  will be  deemed
severable and the  invalidity  or  unenforceability  of any  provision  will not
affect the validity or enforceability of the other provisions  hereof;  provided
that  any  provision  of this  Note  that is  invalid  or  unenforceable  in any
situation  or in any  jurisdiction  will not  affect the  enforceability  of the
remaining  terms and provisions  hereof or the  enforceability  of the offending
term or provision in any other situation or in any other jurisdiction.
         6.10     EXPENSES. Except as otherwise expressly provided in this Note,

each Party will bear its own costs and expenses  incurred in connection with the
preparation,  execution  and  performance  of this Note,  including all fees and
expenses of agents,  representatives,  financial  advisors,  legal counsel,  and
accountants.  This  paragraph  shall not  affect  attorneys'  fees  which may be
incurred in connection  with  collection of late payments or resulting  from any
Event of Default, as described above.

         6.11     ATTORNEYS'  FEES.  If there exists an Event of Default,  Maker
agrees to pay all costs and expenses of collection,  including  attorneys' fees,
incurred by Payee in connection therewith, whether or not suit is filed.


                                      A-53



         6.12     CONSTRUCTION.  The Parties  have  participated  jointly in the
negotiation  and drafting of this Note. If an ambiguity or question of intent or
interpretation  arises, this Note will be construed as if drafted jointly by the
Parties and no presumption or burden of proof will arise favoring or disfavoring
any Party because of the authorship of any provision of this Note. Any reference
to any  federal,  state,  local,  or foreign law will be deemed also to refer to
such law as amended and all rules and regulations promulgated thereunder, unless
the context requires otherwise. The words "include," "includes," and "including"
will be deemed to be followed by "without  limitation."  Pronouns in  masculine,
feminine,  and neuter genders will be construed to include any other gender, and
words in the  singular  form will be  construed  to include  the plural and vice
versa, unless the context otherwise  requires.  The words "this Note," "herein,"
"hereof," "hereby,"  "hereunder," and words of similar import refer to this Note
as a whole and not to any particular  subdivision  unless  expressly so limited.
The Parties intend that each  representation,  warranty,  and covenant contained
herein  will  have  independent  significance.  If any Party  has  breached  any
representation,  warranty, or covenant contained herein in any respect, the fact
that there exists another  representation,  warranty or covenant relating to the
same subject matter (regardless of the relative levels of specificity) which the
Party has not breached will not detract from or mitigate the fact that the Party
is in breach of the first representation, warranty, or covenant.

         6.13     REMEDIES.  Except as expressly  provided  herein,  the rights,
obligations and remedies  created by this Note are cumulative and in addition to
any other  rights,  obligations  or remedies  otherwise  available  at law or in
equity.  Except as expressly provided herein,  nothing herein will be considered
an election of remedies.

         IN WITNESS  WHEREOF,  Maker has executed and delivered  this Note as of
the date first above written.

                                    MAKER:

                                    ALPHA INNOTECH CORPORATION


                                    --------------------------------------------
                                    By:
                                    Its:


                                      A-54



                                    EXHIBIT B

                           [FORM OF] ESCROW AGREEMENT


         THIS ESCROW  AGREEMENT  (this "ESCROW  AGREEMENT")  is made and entered
into as of this _____ day of _______, 200_, by and among [ALPHA INNOTECH CORP.],
a   Delaware   corporation   formerly   known  as   Xtrana,   Inc.   ("Xtrana"),
[_____________________],  as escrow agent (the "ESCROW AGENT"), [_____________],
as representative for the former stockholders of Alpha Innotech  Corporation,  a
California corporation ("AIC"), (the "AIC Representative"), and [_____________],
as representative of the stockholders of Xtrana immediately prior the Merger (as
defined below) (the "XTRANA REPRESENTATIVE").

                                    RECITALS

         A.  Pursuant to the  Agreement  and Plan of Merger,  dated  __________,
2004, by and among Xtrana, AIC Merger Corporation,  a California corporation and
subsidiary of Xtrana ("MERGERCO"),  and AIC (the "MERGER  Agreement"),  MergerCo
was merged with and into AIC with AIC surviving as a wholly-owned  subsidiary of
Xtrana (the  "MERGER").  In  connection  with the closing of the Merger,  Xtrana
changed its corporate name from Xtrana, Inc. to [ALPHA INNOTECH CORP.]

         B.  Pursuant  to the  Merger  Agreement,  the  parties  to  the  Merger
Agreement have agreed that (i) of the Merger Consideration,  [__________] shares
of Common Stock,  par value $0.01 per share, of Xtrana (the "COMMON STOCK") will
be deposited in escrow in accordance with the terms of this Escrow  Agreement to
secure AIC's indemnification obligations under Section 9 of the Merger Agreement
(such shares are referred to as the  "HOLDBACK  SHARES") and (ii) an  additional
[___________]  treasury  shares of Common  Stock will be  deposited in escrow in
accordance  with  the  terms  of  this  Escrow   Agreement  to  secure  Xtrana's
indemnification obligations under Section 9 of the Merger Agreement (such shares
are referred to the "AIC INDEMNIFICATION  SHARES" and together with the Holdback
Shares, the "ESCROW SHARES").

                                    AGREEMENT

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
promises herein made, and in consideration of the  representations,  warranties,
and covenants contained herein and in the Merger Agreement,  it is hereby agreed
as follows:

1.       MERGER AGREEMENT.  Capitalized terms used herein and not defined herein
shall have the  meanings  given such terms in the Merger  Agreement.  The Escrow
Agent hereby acknowledges receipt of a copy of the Merger Agreement, but, except
for referring to definitions of certain undefined  capitalized terms herein, the
Escrow Agent is not charged with any duties or responsibilities under the Merger
Agreement.

2.       DEPOSIT IN ESCROW.

         2.1      Xtrana  has  instructed  its  transfer  agent  (the  "TRANSFER
AGENT")  to  deliver  (a)  certificate(s)   representing  the  Holdback  Shares,
registered  in the name of  "_______________,  as Escrow  Agent under  agreement
dated  ___________,"  to the Escrow Agent deposited with the Escrow Agent, to be
held and administered as provided herein for the benefit of the AIC Shareholders
and (b) certificate(s)  representing the AIC Indemnification Shares,  registered
in the name of Xtrana, accompanied by an executed stock assignment separate from
certificate,  to the Escrow Agent along to be held and  administered as provided
herein.  The Escrow Shares shall be held by the Escrow Agent in accordance  with
the terms set forth in this Escrow Agreement.

         2.2      This Escrow Agreement has been executed and delivered, and the
deposit of the Escrow Shares will be made,  for the purpose of  reimbursing  and
providing   compensation  for  those  Damages  that  any  Indemnitee  incurs  in
connection  with any claim for Damages  arising  under the Merger  Agreement for
which such  Indemnitee  is entitled to  indemnification  under  Section 9 of the
Merger Agreement. Nothing herein will limit any noncontractual remedy for fraud.


                                      A-55



         2.3      For all  purposes  under  this  Escrow  Agreement,  the Escrow
Shares shall be valued a per share value equal to the Market Price as defined in
the Merger Agreement, which share value shall be subject to adjustment for stock
splits, reverse stock splits and stock dividends.

         2.4      Any shares or other  property to be  distributed to all of the
AIC  Shareholders on a pro rata basis pursuant to this Escrow Agreement shall be
allocated among the AIC  Shareholders in proportion to their relative  ownership
on an as-converted  basis of the capital stock of AIC  immediately  prior to the
Merger as set forth on Schedule I to this Escrow Agreement.

3.       DISTRIBUTIONS ON AND VOTING OF SHARES.

         3.1      If the Escrow Agent  receives any  securities in respect of or
in exchange for any of the Escrow Shares it holds,  whether by way of dividends,
share  splits,   recapitalizations,   liquidations,   mergers,   consolidations,
split-ups,  spin-offs,  redemptions,  exchanges or conversions of shares and the
like, the Escrow Agent will hold in escrow such securities as Escrow Shares,  to
be held and  distributed  by it in the same manner as, and constitute a part of,
the Escrow  Shares.  All cash dividends or other taxable  distributions  paid by
Xtrana with  respect to the  Holdback  Shares  will be paid  directly to the AIC
Shareholders and the Escrow Agent will have no  responsibility  of any kind with
respect to such  dividends or  distributions.  No cash dividends will be paid by
Xtrana with respect to the AIC Indemnification  Shares so long as they remain in
escrow  pursuant to this Escrow  Agreement and maintain their status as treasury
shares.

         3.2      Unless  and  until  such  time as the  Holdback  Shares or any
portion thereof are distributed to Xtrana for  cancellation as provided  herein,
the AIC  Shareholders  shall  have the full right to vote the  Holdback  Shares.
Unless  and until  such time as the AIC  Indemnification  Shares or any  portion
thereof are  distributed to the AIC  Shareholders  as provided  herein,  the AIC
Indemnification  Shares shall constitute treasury shares of Xtrana and shall not
have any voting rights.

4.       TAXES AND CHARGES ON SHARES.  The AIC  Shareholders  may not create any
liens or  encumbrances on the Holdback Shares and shall be liable for, and shall
from time to time pay and discharge when due and payable, all taxes, assessments
and  governmental  charges  lawfully imposed on the Holdback Shares or resulting
from any  distribution  on or other income arising from the Holdback  Shares and
not then being contested in good faith.  The AIC  Shareholders  shall report all
such  distributions  or other  income in its income tax  returns for the year in
which such  distributions  or other income are paid as if such  distributions or
other income had been made or paid directly to the AIC Shareholders.  Xtrana may
not create any liens or encumbrances on the AIC Indemnification Shares and shall
be liable  for,  and  shall  from  time to time pay and  discharge  when due and
payable, all taxes, assessments and governmental charges lawfully imposed on the
AIC Indemnification Shares or resulting from any distribution on or other income
arising from the AIC Indemnification Shares and not then being contested in good
faith.

5.       DISTRIBUTION OF ESCROW SHARES.

         5.1      Upon the delivery of written  instructions to the Escrow Agent
signed by both the AIC Representative and the Xtrana Representative,  the Escrow
Agent shall  promptly  deliver the Escrow  Shares  (together  with any  proceeds
earned from the  investment  thereof),  or any portion  thereof,  to one or more
accounts   designated   in  writing  by  the  AIC   Representative   and  Xtrana
Representative  and  otherwise  in  accordance  with the  terms of such  written
instructions.

         5.2      Thirty (30) days after the AIC Representative gives the Xtrana
Representative,  Xtrana and the Escrow Agent a written notice (a "CLAIM NOTICE")
of a claim for Damages  pursuant to the Merger  Agreement,  which  notice  makes
specific  reference  to this  Section 5.2 and is  accompanied  by a copy of this
Escrow Agreement,  and specifies the basis therefor, the amount due to the party
claiming a right to  indemnification  (the  "INDEMNITEE") by reason thereof (the
"CLAIM AMOUNT") and the number of AIC Indemnification Shares determined pursuant
to Section 2.3 to have an aggregate value equal to the Claim Amount,  the Escrow
Agent shall transfer to the Transfer Agent  certificate(s)  representing the AIC
Indemnification  Shares  together  with the  Claim  Notice,  and it shall be the
responsibility of the Transfer Agent to distribute the certificates representing
the number of AIC  Indemnification  Shares  specified in the Claim Notice to the
Indemnitee and to issue a certificate to the Escrow


                                      A-56



Agent,  registered  in the  name  of  Xtrana,  representing  the  remaining  AIC
Indemnification  Shares,  if any,  to remain in escrow  pursuant  to this Escrow
Agreement; provided, however, that the Escrow Agent shall not release any Escrow
Shares  pursuant to this Section 5.2 in accordance with a Claim Notice if within
twenty-five   (25)  days  of   delivery   of  the  Claim   Notice,   the  Xtrana
Representative,  gives a written notice of denial (a "CLAIM  DENIAL") to the AIC
Representative,  Xtrana and the Escrow Agent denying the validity in whole or in
part of the claim made by the AIC Representative in the Claim Notice.

         5.3      Thirty (30) days after the Xtrana Representative gives the AIC
Representative,  Xtrana and the Escrow Agent a Claim Notice for Damages pursuant
to the Merger Agreement,  which notice makes specific  reference to this Section
5.3 and is  accompanied  by a copy of this Escrow  Agreement,  and specifies the
basis  therefor,  the  Claim  Amount  due to the  Indemnitee  and the  number of
Holdback  Shares  determined  pursuant to Section 2.3 to have an aggregate value
equal to the Claim Amount, the Escrow Agent shall transfer to the Transfer Agent
the  certificate(s)  representing  the Holdback  Shares  together with the Claim
Notice,  and it shall be the  responsibility of the Transfer Agent to distribute
the  certificates  representing  the number of Holdback Shares  specified in the
Claim Notice to Xtrana for cancellation and to issue a certificate to the Escrow
Agent  representing the remaining  Holdback Shares,  if any, to remain in escrow
pursuant to this Escrow  Agreement;  provided,  however,  that the Escrow  Agent
shall not release any Escrow  Shares  pursuant to this Section 5.3 in accordance
with a Claim  Notice if within  twenty-five  (25) days of  delivery of the Claim
Notice,   the  AIC   Representative,   gives  a  Claim   Denial  to  the  Xtrana
Representative,  Xtrana and the Escrow Agent denying the validity in whole or in
part of the claim made by the Xtrana Representative in the Claim Notice.

         5.4      If any party gives a Claim Denial in  accordance  with Section
5.2  or  5.3,  then  the  Indemnitee  and  the  Xtrana   Representative  or  AIC
Representative,  as appropriate, may submit to the party making the Claim Denial
such  evidence  as it wishes to present  to support  the claim made by it in the
Claim Notice.  During the ten (10) day period  following any such  submission of
evidence,  the AIC  Representative  and the Xtrana  Representative in good faith
shall  attempt to reach  agreement  (it being  understood  that  neither the AIC
Representative nor the Xtrana  Representative shall be required to reach such an
agreement) on an amount due (the "RESOLVED  CLAIM AMOUNT") (or that no amount is
due) with  respect to the claim  specified in the Claim Notice and denied in the
Claim Denial and report such agreement in writing to Xtrana and the Escrow Agent
(it  being  understood  that  such  writing  will be  executed  by both  the AIC
Representative  and the Xtrana  Representative).  After its  receipt of any such
written report,  if applicable,  the Escrow Agent shall promptly  deliver to the
Transfer Agent all Holdback Shares or AIC Indemnification Shares, as applicable,
and it shall be the responsibility of Xtrana and the Transfer Agent to issue and
distribute the appropriate  certificate(s)  having a value equal to the Resolved
Claim Amount and as has been agreed to in such report to Xtrana for cancellation
or to the AIC  Shareholders,  as  appropriate,  and to issue and  deliver to the
Escrow Agent a certificate  representing  the balance of the Holdback  Shares or
AIC Indemnification Shares (provided that any such remaining AIC Indemnification
Shares shall be registered  in the name of Xtrana),  if any, to remain in escrow
pursuant  to  this  Escrow  Agreement.  If the  AIC  Representative  and  Xtrana
Representative do not reach such agreement within said ten (10) day period, then
they may pursue any other legal remedy  permitted by the Merger Agreement as may
then be  available  to determine  the  disposition  of the Claim Amount which is
specified in the Claim Notice which is the subject of the Claim Denial, with the
Escrow  Shares  continuing  to be  held  by  the  Escrow  Agent  subject  to the
provisions of Section 5.5 and 5.6.

         5.5      Subject  to  Section  5.6  below,   on  March  31,  2006  (the
"TERMINATION  DATE"):  (a) the Escrow Agent shall deliver to the Transfer  Agent
the  certificate(s)  representing  such number of  Holdback  Shares as remain in
escrow  pursuant  to this  Escrow  Agreement  on such  date  and it shall be the
responsibility  of Xtrana and the Transfer  Agent to issue and  distribute  such
remaining  Holdback Shares to each of the AIC Shareholders,  pursuant to written
instructions  to be  provided  to  Xtrana  and  the  Transfer  Agent  by the AIC
Representative,  such AIC  Shareholder's  pro  rata  portion  of such  remaining
Holdback  Shares  (determined  as provided in Section  2.4);  and (b) the Escrow
Agent shall deliver to the Transfer Agent the  certificate(s)  representing such
number of AIC Indemnification Shares as remain in escrow pursuant to this Escrow
Agreement  on such date and  Xtrana  covenants  and  agrees to take all  actions
necessary,  and cause  the  Transfer  Agent to take all  actions  necessary,  to
permanently cancel all such remaining AIC Indemnification Shares.

         5.6      Any  distribution  of Holdback  Shares or AIC  Indemnification
Shares required by Section 5.5 above shall be reduced by the aggregate amount of
Holdback Shares or AIC Indemnification Shares, respectively,  (if any) which has
been  distributed  in  accordance  with  Section  5.1 hereof  pursuant to mutual
agreement


                                      A-57



of the AIC Representative and Xtrana  Representative or pursuant to Section 5.2,
5.3 or Section 5.4 hereof  pursuant to Claim  Notices and such Escrow Shares (if
any) which are then subject to a pending  Claim  Notice  (whether or not a Claim
Denial has been given with  respect  thereto).  Any Escrow  Shares  that are not
released from escrow  hereunder on the Termination Date because they are subject
to a pending  Claim  Notice  shall be  distributed  (x) in  accordance  with the
written agreement of the AIC  Representative and Xtrana  Representative,  or (y)
pursuant to an effective and final,  nonappealable order of a court of competent
jurisdiction in the event such an agreement cannot be reached.  Until such time,
such Escrow Shares shall remain subject to this Escrow Agreement.

         5.7      If the Escrow  Agent is holding  Escrow  Shares in its name as
nominee,  the Escrow Agent is authorized to execute stock powers for the purpose
of  transferring  and to transfer  such Escrow Shares as provided in this Escrow
Agreement.  For any Holdback Shares held by the Escrow Agent which are issued in
the name of the AIC  Shareholders,  such  stockholders  hereby transfer any such
Escrow  Shares as provided in this Escrow  Agreement  and  authorize  the Escrow
Agent and  Xtrana  to take any and all  action  which  they  deem  necessary  or
appropriate to accomplish same.

         5.8      The Escrow Shares released from escrow by the Escrow Agent and
delivered to the Transfer Agent for  distribution to the AIC  Shareholders or to
Xtrana for cancellation, as applicable,  pursuant to this Escrow Agreement shall
no longer be subject to the terms and  conditions  of this Escrow  Agreement and
shall (so far as this  Escrow  Agreement  is  concerned)  be and become the sole
property  of the  person  receiving  the same  free and  clear of all  liens and
encumbrances.  Notwithstanding  anything to the contrary  contained herein,  the
Escrow Agent shall not be required to make distributions in excess of the amount
of the Escrow Shares from time to time held hereunder.

6.       ESCROW AGENT PROVISIONS.

         6.1      The Escrow Agent shall  neither be  responsible  for or under,
nor  chargeable  with  knowledge  of,  the  terms  and  conditions  of any other
agreement,  instrument or document  executed  between/among  the parties hereto,
except for the Escrow Agreement and the Merger Agreement.  This Escrow Agreement
sets  forth  all of the  obligations  of the  Escrow  Agent,  and no  additional
obligations  shall be implied  from the terms of this  Escrow  Agreement  or any
other agreement, instrument or document.

         6.2      Each  of  the  parties,  jointly  and  severally,   agrees  to
reimburse  the Escrow Agent on demand for, and to indemnify  and hold the Escrow
Agent harmless against and with respect to, any and all loss, liability,  damage
or expense  (including,  but  without  limitation,  attorneys'  fees,  costs and
disbursements) that the Escrow Agent may suffer or incur in connection with this
Escrow Agreement and its performance hereunder or in connection herewith, except
to the extent such loss,  liability,  damage or expense  arises from its willful
misconduct  of  gross   negligence  as  adjudicated  by  a  court  of  competent
jurisdiction. The Escrow Agent shall have the further right at any time and from
time to time to charge,  and reimburse  itself from, the property held in escrow
hereunder.

         6.3      The  Escrow  Agent  shall be  entitled  to rely  and  shall be
protected in acting in reliance upon any instructions or directions furnished to
it in writing mutually by the AIC  Representative  and Xtrana  Representative or
pursuant to any  provisions  of this Escrow  Agreement  and shall be entitled to
treat as genuine,  and as the  document it purports to be, any letter,  paper or
other  document   furnished  to  it  by  the  AIC   Representative   and  Xtrana
Representative  and  believed  by it to be genuine  and to have been  signed and
presented by the proper party or parties.

         6.4      The  Escrow  Agent  may  consult  with  legal  counsel  of its
selection  in the  event  of any  dispute  or  question  as to  the  meaning  or
construction  of any of the provisions  hereof or its duties  hereunder,  and it
shall incur no liability  and shall be fully  protected in acting in  accordance
with the opinion and instructions of such counsel. Each of the parties,  jointly
and  severally,  agrees to  reimburse  the Escrow Agent on demand for such legal
fees,  disbursements  and expenses and in addition,  the Escrow Agent shall have
the right to reimburse itself for such fees, disbursements and expenses from the
property held in escrow hereunder.

         6.5      The Escrow  Agent shall be under no duty to give the  property
held in escrow by it hereunder any greater  degree of care than it gives its own
similar property.


                                      A-58



         6.6      The Escrow Agent shall  receive the fees  provided in Schedule
II to this  Escrow  Agreement.  Such fees shall be paid by Xtrana.  In the event
that such fees are not paid to the Escrow Agent within 60 days of presentment to
Xtrana, then the Escrow Agent may pay itself such fees from the property held in
escrow hereunder.

         6.7      In the  event  of any  disagreement  between/among  any of the
parties of this Escrow Agreement, or between/among them or either or any of them
and any other  person,  resulting  in adverse  claims or  demands  being made in
connection  with the  subject  matter of the  escrow,  or in the event  that the
Escrow  Agent,  in good  faith,  be in doubt as to what  action it  should  take
hereunder, the Escrow Agent may, at its option, refuse to comply with any claims
or demands on it, or refuse to take any other action hereunder,  so long as such
disagreement  continues or such doubt exists,  and in any such event, the Escrow
Agent  shall not become  liable in any way or to any  person for its  failure or
refusal to act, and the Escrow Agent shall be entitled to continue so to refrain
from acting until:

                  (a)      the rights of all  parties  shall have been fully and
         finally adjudicated by a court of competent jurisdiction; or

                  (b)      all  differences  shall  have been  adjusted  and all
         doubt resolved by agreement  among all of the interested  persons,  and
         the Escrow Agent shall have been notified  thereof in writing signed by
         all such persons.

         The Escrow  Agent shall have the option,  after thirty (30) days notice
to  the  other  parties  of its  intention  to do  so,  to  file  an  action  in
interpleader  requiring the parties to answer and litigate any claims and rights
among  themselves.  The rights of the Escrow  Agent  under  this  paragraph  are
cumulative of all other rights which it may have by law or otherwise.

         6.8      The provisions of this Section 6 shall survive the termination
of the escrow arrangement contemplated hereby.

7.       NOTICES.  All notices and other  communications  hereunder  shall be in
writing and shall be deemed given when hand  delivered or delivered by certified
or registered  mail (return  receipt  requested) or by facsimile,  in every case
addressed  as  follows  (or at such  other  address  for a  person  as  shall be
specified by like notice):

                  (a)      If to Xtrana, to:

                           Alpha Innotech Corporation
                           2401 Merced St.
                           San Leandro, CA 94577
                           Attn:  Chief Executive Officer
                           Fax: 510-483-3227

                  (b)      If to the AIC Representative, to:

                  (c)      If to the Xtrana Representative, to

                  (d)      If to the Escrow Agent, to:

8.       RESIGNATION.  The Escrow Agent may, in its sole discretion,  resign and
terminate its position  hereunder at any time following thirty (30) days written
notice to the parties to the Escrow Agreement herein. Any such resignation shall
terminate  all  obligations  and duties of the Escrow  Agent  hereunder.  On the
effective date of such  resignation,  the Escrow Agent shall deliver this Escrow
Agreement together with the Escrow Shares and any and all related instruments or
documents to any  successor  Escrow Agent  agreeable to the parties,  subject to
this Escrow Agreement herein. If a successor Escrow Agent has not been appointed
prior to the  expiration of thirty (30) days following the date of the notice of
such  resignation,  the then  acting  Escrow  Agent  may  petition  any court of


                                      A-59



competent jurisdiction for the appointment of a successor Escrow Agent, or other
appropriate relief. Any such resulting  appointment shall be binding upon all of
the parties to this Escrow Agreement.

9.       MISCELLANEOUS.

         9.1      Successors and Assigns.  This Escrow  Agreement shall inure to
the  benefit  of and be binding  upon the  parties  hereto and their  respective
successors and assigns.

         9.2      Headings.  The captions set forth in this Escrow Agreement are
for  convenience  only  and  shall  not be  considered  as part  of this  Escrow
Agreement  or as in any way  limiting  or  amplifying  the terms and  provisions
hereof.

         9.3      Counterparts.  This Escrow Agreement may be executed in two or
more counterparts,  each of which shall be deemed an original,  but all of which
together shall constitute one and the same agreement.

         9.4      Governing  Law.  THE TERMS OF THIS ESCROW  AGREEMENT  SHALL BE
GOVERNED BY AND CONSTURED IN ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA
APPLICABLE TO CONTRACTS MADE WITHIN SUCH STATE.

         9.5      Time of Essence.  Time is of the essence  with respect to this
Escrow Agreement and the time deadlines are specified herein.

         9.6      Severability.  Whenever possible, each provision or portion of
any provision of this Escrow  Agreement will be interpreted in such manner as to
be effective and valid under  applicable  law but if any provision or portion of
any  provision  of this  Escrow  Agreement  is held to be  invalid,  illegal  or
unenforceable   in  any  respect  under  any  applicable  law  or  rule  in  any
jurisdiction,  such invalidity,  illegality or unenforceability  will not affect
any other provision or portion of any provision in such  jurisdiction,  and this
Escrow Agreement will be reformed,  construed and enforced in such  jurisdiction
as if such  invalid,  illegal  or  unenforceable  provision  or  portion  of any
provision had never been contained herein.

         9.7      Entire Agreement;  No Third-Party  Beneficiaries.  This Escrow
Agreement  and the other  agreements  referred to herein  constitute  the entire
agreement,  and supersede all prior agreements and understandings,  both written
and oral,  among the parties with  respect to the subject  matter of this Escrow
Agreement.  Except as expressly  provided  herein,  this Escrow Agreement is not
intended  to  confer  upon any  Person  other  than the  parties  any  rights or
remedies.

         9.8      Extension; Waiver. The parties may (a) extend the time for the
performance of any of the  obligations  or other acts of the other parties,  (b)
waive any inaccuracies in the representations  and warranties  contained in this
Escrow Agreement or in any document delivered pursuant to this Escrow Agreement,
or (c) waive  compliance  with any of the agreements or conditions  contained in
this  Escrow  Agreement.  Any  agreement  on the  part  of a party  to any  such
extension or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such  party.  The  failure of any party to assert any of its
rights under this Escrow Agreement or otherwise shall not constitute a waiver of
such rights.


                                      A-60



         IN  WITNESS  WHEREOF,  this  Escrow  Agreement  has  been  executed  in
counterparts to be effective on the date first set forth above.

XTRANA:                                      ESCROW AGENT:

Xtrana, Inc.,                                [______________]
a Delaware corporation


By:                                          By:                                
         ---------------------------                  --------------------------
Name:                                        Name:                              
         ---------------------------                  --------------------------
Title:                                       Title:                             
         ---------------------------                  --------------------------

AIC REPRESENTATIVE:                          XTRANA REPRESENTATIVE:



------------------------------------         -----------------------------------
Name:                                        Name:


                                      A-61



                                    EXHIBIT C

                                    [FORM OF]
                               AGREEMENT OF MERGER

This Agreement of Merger (the  "AGREEMENT") is entered into by and between Alpha
Innotech  Corporation,  a California  corporation  (herein after  referred to as
"SURVIVOR"),  and AIC Merger Corporation, a California corporation (herein after
referred to as "MERGECO").

1.       The  authorized  capital  stock of MergeCo  consists of 1,000 shares of
         stock,  all of which have been  designated  Common Stock (the  "MERGECO
         COMMON STOCK").

2.       The  authorized  capital stock of MergerCo  consists of 1,000 shares of
         Common Stock. There are issued and outstanding 1,000 shares of Survivor
         Common Stock.  The  authorized  capital  stock of Survivor  consists of
         70,000,000 shares of Common Stock ("SURVIVOR COMMON STOCK"), 14,000,000
         shares of Series A  Preferred  Stock  ("SURVIVOR  SERIES A STOCK")  and
         10,000,000  shares of Series A-1 Preferred Stock ("SURVIVOR  SERIES A-1
         STOCK"),  of which  [___________]  shares  of  Survivor  Common  Stock,
         [___________]  shares of Survivor Series A Stock and [________]  shares
         of Survivor Series A-1 Stock are issued and outstanding.

3.       MergeCo,  Survivor, and Xtrana, Inc., a Delaware corporation and parent
         corporation  of  MergeCo  ("Parent"),   are  parties  to  that  certain
         Agreement  and  Plan of  Merger  dated as of  December  __,  2004  (the
         "PLAN").

4.       Pursuant to Section 2.1 of the Plan,  MergeCo  shall be merged with and
         into Survivor (the "MERGER") and Survivor shall be the surviving entity
         in the Merger (the surviving  entity is hereinafter  referred to as the
         "SURVIVING CORPORATION").

5.       At the effective time of the Merger,  the Amended and Restated Articles
         of Incorporation attached hereto as Exhibit "A" (the "SURVIVOR ARTICLES
         OF  INCORPORATION")  shall become the Articles of  Incorporation of the
         Surviving Corporation.

6.       Pursuant to Section 2.7 of the Plan, at the closing of the transactions
         contemplated by the Plan:

         a.       each  outstanding  share of  Survivor  Common  Stock  shall be
                  converted into ________  shares of the Common Stock of Parent,
                  as more fully set forth in the Plan;

         b.       each  outstanding  share of  Survivor  Series A Stock shall be
                  converted into ________  shares of the Common Stock of Parent,
                  as more fully set forth in the Plan;

         c.       each  outstanding  share of Survivor Series A-1 Stock shall be
                  converted into ________  shares of the Common Stock of Parent,
                  as more fully set forth in the Plan;

         d.       each outstanding  option to purchase Survivor Common Stock, or
                  warrant to purchase Survivor Common Stock or Survivor Series A
                  Stock,  in each  case  whether  vested or  unvested,  shall be
                  assumed by Parent or replaced  with  options  and  warrants to
                  purchase the Common Stock of Parent on substantially identical
                  terms,  provided  that any  warrants  to  purchase  shares  of
                  Survivor Series A Stock will be exercisable for that number of
                  shares of Common  Stock  into  which the  underlying  Survivor
                  Series A Stock  would be  convertible  upon  exercise  of such
                  warrants; and

         e.       all of the outstanding shares of MergeCo Common Stock shall be
                  converted into one (1) share of Survivor Common Stock.

7.       MergeCo shall from time to time, as and when  requested by the Survivor
         or Parent,  execute and deliver all such documents and  instruments and
         take all such action  necessary  or  desirable to evidence or carry out
         this Merger.

8.       The effect of the Merger  and the  effective  date of the Merger are as
         prescribed by law.


                                      A-62



                                    EXHIBIT D

                        FORM OF AIC OFFICERS' CERTIFICATE


                              OFFICERS' CERTIFICATE

         We certify that we are the duly  elected,  qualified,  and acting Chief
Executive Officer and Chief Financial Officer,  respectively,  of Alpha Innotech
Corporation,  a  California  corporation  ("AIC"),  and  that,  as such,  we are
familiar with the facts herein  certified and are duly authorized to certify the
same and do hereby certify as follows:

         1.       Each of us has  carefully  reviewed the  Agreement and Plan of
Merger dated as of  ___________,  2004,  by and among  Xtrana,  Inc., a Delaware
corporation,  AIC Merger  Corporation,  a California  corporation,  and AIC (the
"MERGER AGREEMENT"), and the Schedules and exhibits thereto. This Certificate is
being  delivered  on AIC's  behalf  pursuant  to SECTION  2.3.1(A) of the Merger
Agreement.  Undefined  capitalized  terms  herein  are  defined  in  the  Merger
Agreement.

         2.       Each representation and warranty set forth in SECTION 3 of the
Merger  Agreement was true and complete in all material  respects as of the date
of the Merger Agreement, and is true and complete in all material respects as of
the hereof,  as if made on the date hereof,  unless made as of another  date, in
which case they are true and correct in all material respects as of such date.

         3.       AIC has performed  and complied in all material  respects with
all of its  obligations  and  covenants to be  performed or complied  with at or
prior to Closing (singularly and in the aggregate).

         4.       Since  the  date of the  Merger  Agreement  there  has been no
event, series of events, or the lack of occurrence thereof which,  singularly or
in the aggregate, could reasonably be expected to have a Material Adverse Effect
on AIC.

         5.       As of the Closing,  AIC has obtained  all  licenses,  permits,
consents, approvals,  authorizations,  qualifications and orders of Governmental
Entities  and  other  third  parties  as  necessary  in   connection   with  the
transactions contemplated by the Agreement.

         6.       The AIC  Shareholders'  Approval  has  been  obtained  and the
Merger  Agreement and the Merger have been approved by a vote of at least 90% of
the issued and  outstanding  AIC Shares by vote, or written consent in lieu of a
meeting,  in compliance in all respects with AIC's Articles of Incorporation and
Bylaws and California law. No AIC Shareholders have exercised or are entitled to
exercise dissenters' rights in connection with the Merger.

         7.       There is no pending or threatened by any  Governmental  Entity
any suit,  action or  proceeding  (or by any other  Person  any suit,  action or
proceeding which has a reasonable  likelihood of success) challenging or seeking
to restrain or prohibit the consummation of the Merger.


                                      A-63



         IN WITNESS WHEREOF, we have executed this certificate on _____________.

                  By:                                                  
                     --------------------------------------------------

                  Name:                                                
                       ------------------------------------------------

                  Title: Chief Executive Officer

                  By:                                                  
                     --------------------------------------------------

                  Name:                                                
                       ------------------------------------------------

                  Title: Chief Financial Officer


                                      A-64



                                    EXHIBIT E

                      FORM OF AIC'S SECRETARY'S CERTIFICATE

                             SECRETARY'S CERTIFICATE

         I certify that I am the duly elected,  qualified,  and acting Secretary
of Alpha  Innotech  Corporation  corporation  ("AIC"),  and that,  as such, I am
familiar with the facts herein  certified and am duly  authorized to certify the
same and do hereby certify as follows:

         1.       This  Certificate is being  delivered on AIC's behalf pursuant
to SECTION 2.3.1(B) of the Agreement and Plan of Merger dated as of ___________,
2004, by and among Xtrana, Inc., a Delaware corporation, AIC Merger Corporation,
a  California   corporation,   and  AIC  (the  "MERGER  AGREEMENT").   Undefined
capitalized terms herein are defined in the Merger Agreement.

         2.       Attached as EXHIBIT A is a true, correct, and complete copy of
AIC's Amended and Restated Articles of Incorporation, certified by the Secretary
of State of the State of  California,  which is in full  force and  effect as of
today.

         3.       Attached as EXHIBIT B is a true, correct, and complete copy of
AIC's Bylaws, which are in full force and effect as of today.

         4.       Attached as EXHIBIT C is a true, correct, and complete copy of
the resolutions of AIC's Board of Directors  approving the Merger  Agreement and
the transactions  contemplated thereby. Such resolutions have not been rescinded
or modified in any way and are in full force and effect on the date hereof.

         5.       Attached as EXHIBIT D is a true, correct, and complete copy of
all the resolutions of AIC's shareholders approving the Merger Agreement and the
transactions  contemplated  thereby. Such resolutions have not been rescinded or
modified in any way and are in full force and effect on the date hereof.

         6.       Attached as EXHIBIT E are true,  correct,  and complete copies
of recent  certificates  of existence and good  standing for AIC,  issued by the
Secretary of State of the State of California  and by the  California  Franchise
Tax Board.

         7.       Attached as EXHIBIT F is a true, correct, and complete copy of
a recent  certificate of foreign  qualification or good standing for AIC in each
jurisdiction in which it is required to be so qualified or in good standing,  as
issued by the Secretary of State of such jurisdiction.

         8.       I have examined the signatures of AIC's  officers  signing the
Merger  Agreement and the exhibits and other  documents  delivered in connection
therewith, and such signatures are their true signatures.  As of the date hereof
(and the date of such  signatures),  such  officers  are  (were)  duly  elected,
qualified, and acting officers of AIC, holding the office specified beside their
names.

         IN WITNESS  WHEREOF,  I have executed this  certificate  on [MONTH DAY,
YEAR].

                           By:                                                  
                              --------------------------------------------------

                           Name:                                                
                                ------------------------------------------------

                           Title:  Secretary


                                      A-65



                                    EXHIBIT F

                         LEGAL OPINION (MERGER CLOSING)

________, 200_

Xtrana, Inc.
733 Spruce Meadow Place
Thousand Oaks, CA 91362

Ladies and Gentlemen:

We  have  acted  as  counsel  for  Alpha  Innotech  Corporation,   a  California
corporation (the "Company"),  in connection with the negotiation,  execution and
delivery by the Company of the Agreement and Plan of Merger dated as of December
__, 2004 (the "Merger  Agreement") by and among the Company,  Xtrana,  Inc. (the
"Acquiror")  and AIC Merger  Corporation,  a California  corporation  and wholly
owned  subsidiary  of Acquiror  (the  "MergerCo").  This opinion is given to you
pursuant to Section  2.3.1(d) of the Merger  Agreement.  Unless defined  herein,
capitalized terms have the meanings given them in the Merger Agreement.

In rendering this opinion, we have examined such matters of law as we considered
necessary  for the  purpose of  rendering  this  opinion.  As to matters of fact
material  to  the   opinions   expressed   herein,   we  have  relied  upon  the
representations  and warranties as to factual  matters  contained in and made by
the  Company  pursuant  to the  Merger  Agreement  and the  Opinion  Certificate
(defined below) and upon certificates and statements of government officials and
of officers of the Company. In addition, we have examined originals or copies of
documents,  corporate  records and other writings that we consider  relevant for
the  purposes of this  opinion.  In such  examination,  we have assumed that the
signatures on documents and instruments examined by us are authentic,  that each
is what it purports to be, and that all documents and  instruments  submitted to
us as copies or facsimiles  conform with the originals,  which facts we have not
independently verified.

In making our  examination of documents,  we have further  assumed that (i) each
party to such  documents  (other than the Company in connection  with the Merger
Agreement)  had the  power,  legal  competence  and  capacity  to enter into and
perform  all of such  party's  obligations  thereunder,  (ii) each party to such
documents  (other than the Company in connection with the Merger  Agreement) has
duly  authorized,  executed and  delivered  such  documents,  (iii) each of such
documents is enforceable  against and binding upon the parties to thereto (other
than the Merger  Agreement  against the  Company),  and (iv) there is no fact or
circumstance  relating  to you or your  business  that  might  prevent  you from
enforcing any of the rights provided for in the Merger  Agreement.  We have also
assumed  that there are no  extrinsic  agreements  or  understandings  among the
parties to the Merger Agreement,  or Contractual Obligations (as defined below),
that  would  modify  or  interpret  the  terms of the  Merger  Agreement  or the
Contractual  Obligations or the respective  rights or obligations of the parties
thereunder.

As used in this opinion, the expression "to our knowledge" or "known to us" with
reference to matters of fact refers to the current actual knowledge of attorneys
within the firm  principally  responsible  for handling  current matters for the
Company.  Except to the extent expressly set forth herein we have not undertaken
any independent investigation to determine the existence or absence of any other
facts,  and no inference as to our  knowledge of the existence or absence of any
such  facts  should  be drawn  from our  representation  of the  Company  or the
rendering of the opinions set forth below.

We express no opinion as to matters  governed by any laws other than the laws of
the State of California and the federal law of the United States of America.  We
express no opinion as to whether the laws of any particular  jurisdiction apply,
and no opinion to the extent that the laws of any jurisdiction  other than those
identified  above are  applicable  to the Merger  Agreement or the  transactions
contemplated thereby.

In  rendering  the  opinion  set  forth in  paragraph  (a)  below as to the good
standing  of  the  Company  and  as  to  its  qualification  to do  business  in
California, we have relied exclusively on certificates of public officials dated
as of _______.


                                      A-66



In rendering the opinion set forth in paragraph (d) below  relating to the fully
paid status of all of the issued shares of capital stock of the Company, we have
relied without  independent  verification on the certificate of Haseeb Chaudhry,
the Chief Executive Officer of the Company (the "Opinion  Certificate"),  to the
effect that the Company has received the consideration  approved by its Board of
Directors for all of the issued shares of capital stock of the Company.

In rendering  the opinion set forth in  paragraph  (d) relating to the status of
the capitalization of the Company, we have relied without further  investigation
on (i) the  Company's  Amended  and  Restated  Articles  of  Incorporation  (the
"Restated Articles"), (ii) minute books relating to meetings and written actions
of the Board of Directors and  shareholders  of the Company and stock records in
our possession,  and (iii) statements in the Opinion Certificate relating to the
capitalization  of the  Company.  The Company has  represented  to us that these
records  completely  and accurately  describe all of the Company's  issuances of
shares of its capital stock, options,  warrants,  conversion privileges or other
rights to purchase  shares of its capital  stock.  Although we have no knowledge
that the  information as to outstanding  stock,  options,  warrants,  conversion
privileges  and other rights  provided by the Company and reflected in paragraph
(d) is incorrect,  based on the  examination  referred to above, we are not in a
position  to verify its  accuracy  or  completeness,  other than to say that our
records are not inconsistent with such information.

We note that the parties to the Merger Agreement have designated the laws of the
State of Delaware as the laws  governing  the Merger  Agreement.  Our opinion in
paragraph (e) below as to the validity, binding effect and enforceability of the
Merger  Agreement  is  premised  upon the  result  that would be  obtained  if a
California  court were to apply the internal  laws of the State of California to
the interpretation and enforcement of the Merger Agreement  (notwithstanding the
designation therein of the laws of the State of Delaware). We express no opinion
as to whether the laws of any particular  jurisdiction  apply, and no opinion to
the extent that the laws of any  jurisdiction  other than those identified above
are applicable to the subject matter hereof.

In  rendering  the  opinion  in  paragraph  (f)  below,  the  term  "Contractual
Obligations" shall mean only those contracts to which the Company is a party and
which are expressly  identified on Section 3.17 of the AIC Disclosure  Schedule.
We have further  assumed that the  governing law  (exclusive of California  laws
relating  to  conflicts  of  laws)  of  each  such  Contractual   Obligation  is
California.  We have not,  however,  reviewed the  covenants in the  Contractual
Obligations  that  contain   financial   ratios  and  other  similar   financial
restrictions,  and no opinion is provided with respect  thereto.  We also do not
express any opinion on parol evidence bearing on  interpretation or construction
of  such  Contractual  Obligations,   or  on  any  oral  modifications  to  such
Contractual Obligations made by the parties thereto.

In rendering  the opinion in  paragraph  (f)  relating to  violations  of United
States  federal or  California  laws,  rules or  regulations  applicable  to the
Company,  such opinion is limited to such laws, rules or regulations that in our
experience are typically  applicable to a transaction of the nature contemplated
by the Merger Agreement.

In addition to the  foregoing,  the opinions  expressed  below are  specifically
subject  to  the   following   limitations,   exceptions,   qualifications   and
assumptions:

(i)      We  express no  opinion  as to the  effect of  bankruptcy,  insolvency,
reorganization,  moratorium  and other similar laws relating to or affecting the
relief of debtors or the rights and remedies of creditors  generally,  including
without  limitation  the effect of statutory or other law  regarding  fraudulent
conveyances, preferential transfers and equitable subordination;

(ii)     Our  opinions  are  qualified  by the  limitations  imposed  by general
principles  of  equity  upon the  availability  of  equitable  remedies  for the
enforcement of provisions of the Merger Agreement, and by the effect of judicial
decisions which have held that certain  provisions are unenforceable  when their
enforcement  would violate the implied  covenant of good faith and fair dealing,
or would be commercially unreasonable, or where their breach is not material;

(iii)    We  express  no  opinion  as to the  effect  of  Section  1670.5 of the
California  Civil Code or any other  California  law,  United States  federal or
Delaware law or equitable  principle  which  provides that a court may refuse 


                                      A-67



to enforce,  or may limit the  application  of, a contract or any clause thereof
which the court  finds to have  been  unconscionable  at the time it was made or
contrary to public policy;

(iv)     We express no opinion as to compliance  with any United States  federal
or state antitrust statutes, rules or regulations,  including without limitation
the Hart-Scott-Rodino Antitrust Improvements Act of 1976;

(v)      We  express  no  opinion as to  compliance  with  applicable  antifraud
statutes, rules or regulations of applicable United States federal or state laws
concerning the issuance or sale of securities;

(vi)     We express no opinion as to the  enforceability  of  provisions  of the
Merger Agreement  expressly or by implication  waiving broadly or vaguely stated
rights or unknown  future  rights,  or waiving  rights granted by law where such
waivers are against public policy;

(vii)    We express no opinion as to the  enforceability of any provision of the
Merger  Agreement  purporting  to (a) waive rights to trial by jury,  service of
process or objections to the laying of venue or to forum in connection  with any
litigation  arising out of or  pertaining to the Merger  Agreement,  (b) exclude
conflict of law principles under California law, (c) establish particular courts
as the forum for the  adjudication  of any  controversy  relating  to the Merger
Agreement,  (d) establish the laws of any particular  state or jurisdiction  for
the  adjudication  of any  controversy  relating  to the Merger  Agreement,  (e)
establish evidentiary standards or make determinations conclusive or (f) provide
for arbitration of disputes;

(viii)   We express no opinion as to the effect of judicial  decisions  that may
permit  the  introduction  of  extrinsic  evidence  to  modify  the terms or the
interpretation of the Merger Agreement;

(ix)     We express no opinion as to the enforceability of any provisions of the
Merger  Agreement  providing that (a) rights or remedies are not exclusive,  (b)
rights or remedies may be exercised without notice, (c) every right or remedy is
cumulative  and may be  exercised  in  addition  to or with any  other  right or
remedy,  (d) the election of a particular  remedy or remedies  does not preclude
recourse to one or more other  remedies or (e) the failure to  exercise,  or any
delay in exercising,  rights or remedies  available  under the Merger  Agreement
will not operate as a waiver of any such right or remedy;

(x)      We note that a requirement  that provisions of the Merger Agreement may
only be waived in writing may not be binding or enforceable if an oral agreement
has been created  modifying any such provision or an implied  agreement by trade
practice or course of conduct has given rise to a waiver;

(xi)     We express no opinion as to whether the members of the Company's  Board
of Directors have complied with their  fiduciary  duties in connection  with the
authorization and performance of the Merger Agreement; and

(xii)    We have  assumed  that  the  Merger  Agreement,  and  the  transactions
contemplated  thereby,  were fair and  reasonable  to the Company at the time of
their  authorization by the Company's Board of Directors and stockholders within
the meaning of Section 144 of the Delaware  General  Corporation Law and Section
310 of the California  General  Corporations Code. Based upon and subject to the
foregoing, we are of the opinion that:

(a)      The Company is a corporation duly incorporated, validly existing and in
good standing under the laws of the State of  California,  and has all corporate
power and authority  necessary to own its properties and to conduct its business
as, to our knowledge, it is presently conducted.

(b)      The Company has the requisite corporate power and authority to execute,
deliver and perform its obligations under the Merger Agreement.

(c)      All  corporate  action on the part of the Company,  its  directors  and
shareholders   necessary  for  the   authorization,   execution,   delivery  and
performance  of the  obligations  under the Merger  Agreement by the Company has
been taken.


                                      A-68



(d)      The  authorized  capital  stock of the Company  consists of  70,000,000
shares of Common Stock,  23,177,526 of which are issued and outstanding prior to
the Closing,  and 22,000,000  shares of Preferred  Stock,  14,000,000  shares of
which have been  designated  Series A Preferred  Stock,  10,533,334 of which are
issued and outstanding prior to the Closing,  and 8,000,000 shares of which have
been designated  Series A-1 Preferred  Stock,  7,343,418 of which are issued and
outstanding prior to the Closing.  All of such issued and outstanding shares are
duly  authorized  and  validly  issued,  and to our  knowledge,  fully  paid and
nonassessable.  To our  knowledge,  except as  described  in the AIC  Disclosure
Schedule,  there are no other presently outstanding preemptive rights,  options,
warrants,  conversion  privileges  or rights to purchase from the Company any of
the  authorized  but  unissued  stock of the Company  other than the  conversion
privileges of the Company's Preferred Stock.

(e)      The Merger  Agreement  constitutes the valid and binding  obligation of
the Company  enforceable  against the Company in accordance with its terms.  The
Merger Agreement has been duly executed and delivered by the Company.

(f)      The execution, delivery and performance of the Merger Agreement has not
resulted  and will not,  as of the  Closing,  result in (i) a  violation  of the
Company's Restated Articles or Bylaws, (ii) a violation of any statute,  rule or
regulation of United States federal or California law applicable to the Company,
(iii) a violation of any judgment or order  specifically  identified  on the AIC
Disclosure  Schedule,  if any, or otherwise known to us or (iv) a default by the
Company under any Contractual Obligation.

(g)      No consent, approval or authorization of or designation, declaration or
filing with, any  governmental  authority on the part of the Company is required
in connection with the valid  execution,  delivery and performance of the Merger
Agreement,  except the filing of the  Agreement of Merger with the  Secretary of
State of the State of California.

In  addition  to the  foregoing,  we  supplementally  inform  you  that,  to our
knowledge,  there is no action,  suit,  proceeding or  investigation  pending or
threatened  against the Company  that (i)  questions  the validity of the Merger
Agreement or the right of the Company to enter into the Merger Agreement or (ii)
if determined adversely,  would be likely to result in a material adverse change
in the financial  condition or business of the Company.  In this regard,  please
note that we have not conducted a docket search in any jurisdiction with respect
to litigation  that may be pending against the Company or any of its officers or
directors, nor have we undertaken any further inquiry whatsoever.

This  opinion is rendered  as of the date first  written  above  solely for your
benefit in connection with the Merger Agreement and may not be relied on by, nor
may copies be delivered to, any other person without our prior written  consent.
Our opinion is expressly limited to the matters set forth above and we render no
opinion,  whether by implication or otherwise,  as to any other matters relating
to  the  Company.   We  assume  no  obligation  to  inform  you  of  any  facts,
circumstances, events or changes in the law that may hereafter be brought to our
attention that may alter, affect or modify the opinions expressed herein.


                                      A-69



                                    EXHIBIT G

                     FORM OF XTRANA'S OFFICERS' CERTIFICATE

         I certify that I am the duly  elected,  qualified,  and acting  interim
Chief Executive Officer and interim Chief Financial  Officer of Xtrana,  Inc., a
Delaware  corporation  ("XTRANA"),  and the duly  elected,  qualified and acting
President of AIC Merger Corporation, a California corporation ("MERGERCO"),  and
that,  as such,  I am  familiar  with the facts  herein  certified  and are duly
authorized to certify the same and do hereby certify as follows:

         1.       I have  carefully  reviewed the  Agreement  and Plan of Merger
dated as of ___________,  2004, by and among Xtrana, MergerCo and Alpha Innotech
Corporation,  a  California  corporation  (the  "MERGER  AGREEMENT"),   and  the
Schedules and exhibits thereto. This Certificate is being delivered on behalf of
Xtrana and  MergerCo  pursuant  to  SECTION  2.3.2(A)  of the Merger  Agreement.
Undefined capitalized terms herein are defined in the Merger Agreement.

         2.       Each representation and warranty set forth in SECTION 4 of the
Merger  Agreement was true and complete in all material  respects as of the date
of the Merger Agreement, and is true and complete in all material respects as of
the hereof,  as if made on the date hereof,  unless made as of another  date, in
which case they are true and correct in all material respects as of such date.

         3.       Each of Xtrana and MergerCo has  performed and complied in all
material  respects with all of its  obligations and covenants to be performed or
complied with at or prior to Closing (singularly and in the aggregate).

         4.       There is no pending or threatened by any  Governmental  Entity
any suit,  action or  proceeding  (or by any other  Person  any suit,  action or
proceeding which has a reasonable  likelihood of success) challenging or seeking
to restrain or prohibit the consummation of the Merger.

         5.       Since  the  date of the  Merger  Agreement  there  has been no
event, series of events, or the lack of occurrence thereof which,  singularly or
in the aggregate, could reasonably be expected to have a Material Adverse Effect
on Xtrana.

         6.       As of the Closing, Xtrana has obtained all licenses,  permits,
consents, approvals,  authorizations,  qualifications and orders of Governmental
Entities  and  other  third  parties  as  necessary  in   connection   with  the
transactions contemplated by the Agreement.

         7.       The cash and cash  equivalents  less  current  liabilities  of
Xtrana on the Closing Date is not less than the Minimum Closing Date Cash.

         IN WITNESS WHEREOF, we have executed this certificate on _____________.

                  By:                                                  
                     -------------------------------------------------

                  Name:    James H. Chamberlain
                  Title:   Chief Executive Officer and Chief Financial 
                           Officer of Xtrana, Inc. and President of 
                           AIC Merger Corporation


                                      A-70



                                    EXHIBIT H

                    FORM OF XTRANA'S SECRETARY'S CERTIFICATE

         We  certify  that  we are  the  duly  elected,  qualified,  and  acting
Secretary of Xtrana,  Inc.,  a Delaware  corporation  ("XTRANA")  and AIC Merger
Corporation, a California corporation ("MERGERCO"),  respectively,  and that, as
such, we are familiar with the facts herein certified and are duly authorized to
certify the same and do hereby certify as follows:

         1.       This  Certificate  is being  delivered on behalf of Xtrana and
MergerCo  pursuant to SECTION 2.3.2(B) of the Agreement and Plan of Merger dated
as of  ___________,  2004,  by and among  Xtrana,  MergerCo  and Alpha  Innotech
Corporation,  a  California  corporation  (the  "MERGER  AGREEMENT").  Undefined
capitalized terms herein are defined in the Merger Agreement.

         2.       Attached as EXHIBIT A is a true, correct, and complete copy of
Xtrana's Certificate of Incorporation, as amended, certified by the Secretary of
State of the State of Delaware, which is in full force and effect as of today.

         3.       Attached as EXHIBIT B is a true, correct, and complete copy of
Xtrana's Bylaws, which are in full force and effect as of today.

         4.       Attached as EXHIBIT C is a true, correct, and complete copy of
the  resolutions of Xtrana's Board of Directors  approving the Merger  Agreement
and the  transactions  contemplated  thereby.  Such  resolutions  have  not been
rescinded  or modified in any way,  and are in full force and effect on the date
hereof.

         5.       Attached as EXHIBIT D is a true, correct, and complete copy of
a recent  certificate  of existence and good standing for Xtrana,  issued by the
Secretary of State of the State of Delaware.

         6.       Attached as EXHIBIT E is a true, correct, and complete copy of
MergerCo's Articles of Incorporation, certified by the Secretary of State of the
State of California, which is in full force and effect as of today.

         7.       Attached as EXHIBIT F is a true, correct, and complete copy of
MergerCo's Bylaws, which are in full force and effect as of today.

         8.       Attached as EXHIBIT G is a true, correct, and complete copy of
the resolutions of MergerCo's Board of Directors  approving the Merger Agreement
and the  transactions  contemplated  thereby.  Such  resolutions  have  not been
rescinded  or modified in any way,  and are in full force and effect on the date
hereof.

         9.       Attached as EXHIBIT H is a true, correct, and complete copy of
the  resolutions  of the sole  shareholder  of  MergerCo  approving  the  Merger
Agreement and the transactions  contemplated  thereby. Such resolutions have not
been  rescinded  or modified in any way, and are in full force and effect on the
date hereof.

         10.      Attached as EXHIBIT I is a true, correct, and complete copy of
a recent certificate of existence and good standing for MergerCo,  issued by the
Secretary of State of the State of California.

         11.      I have  examined the  signatures  of Xtrana's  and  MergerCo's
respective  officers  signing the Merger  Agreement  and the  exhibits and other
documents delivered in connection therewith,  and such signatures are their true
signatures.  As of the  date  hereof  (and the  date of such  signatures),  such
officers are (were) duly elected,  qualified,  and acting  officers of Xtrana or
MergerCo, as applicable, holding the office specified beside their names.

                                      A-71



         IN WITNESS  WHEREOF,  I have executed this  certificate  on [MONTH DAY,
YEAR].

                           By:                                                  
                              --------------------------------------------------
                           Name:                                                
                                ------------------------------------------------
                           Title:   Secretary of Xtrana, Inc.
                           By:                                                  
                              --------------------------------------------------
                           Name:                                                
                                ------------------------------------------------
                           Title:   Secretary of AIC Merger Corporation


                                      A-72



                                    EXHIBIT I

                        FORM OF OPINION OF XTRANA COUNSEL

[Date] 
Alpha Innotech Corporation 
2401 Merced St.
San Leandro, CA 94577

Re: Xtrana, Inc.

Ladies and Gentlemen:

We have acted as counsel to Xtrana, Inc. (the "Company"), in connection with the
merger of AIC Merger  Corporation,  a California  corporation  and  wholly-owned
subsidiary  of  the  Company   ("MergerCo"),   with  and  into  Alpha   Innotech
Corporation,  a California  corporation ("AIC"),  pursuant to that Agreement and
Plan of  Merger  dated  [__________],  2004 (the  "Agreement")  by and among the
Company,  MergerCo  and AIC.  This  opinion is  rendered  at the  request of the
Company pursuant to Section 7.3.8 of the Agreement.  All capitalized  terms used
in this letter,  without  definition,  have the meanings assigned to them in the
Agreement.

In connection with this letter, we have examined executed originals or copies of
executed  originals of each of the following  documents,  each of which is dated
the date hereof or as of the date hereof,  unless otherwise noted (collectively,
the "Transaction Documents"): (a) the Agreement, (b) the Escrow Agreement by and
among the Company,  [______],  [______] and [_______],  and (c) the Agreement of
Merger,  executed by MergerCo and AIC, to be filed with the California Secretary
of State  (the  "Agreement  of  Merger").  In  addition,  we have  examined  the
following  documents  (collectively,  the "Due  Diligence  Documents"):  (a) the
Certificate of Incorporation of the Company,  (b) the Bylaws of the Company, (c)
the  Articles of  Incorporation  of MergerCo,  (d) the Bylaws of  MergerCo,  (e)
resolutions  of the  board of  directors  of the  Company  with  respect  to the
transactions  contemplated  under the  Agreement,  (f) minutes of the  [_______]
meeting of the  stockholders  of the Company  with  respect to the  transactions
contemplated under the Agreement,  (g) resolutions of the board of directors and
sole shareholder of MergerCo with respect to the transactions contemplated under
the Agreement,  (h) certificates of the State agencies or officials set forth on
Schedule  1  hereto  (the  "Good  Standing  Certificates"),   (i)  an  officer's
certificate   from  each  of  the   Company   and   MergerCo   (the   "Officer's
Certificates"),  and (j) the agreements and  instruments to which the Company is
party listed on Section 4.18 of the Xtrana  Disclosure  Schedule (the  "Reviewed
Agreements").

We have examined  originals or certified copies of such corporate records of the
Company and MergerCo and other  certificates  and  documents of officials of the
Company,  MergerCo,  public officials and others, as we have deemed  appropriate
for  purposes of this  letter,  except  where a  statement  is  qualified  as to
knowledge or awareness, in which case we have made limited inquiry, as specified
below. As to various  questions of fact relevant to this letter, we have relied,
without  independent  investigation,   upon  the  Due  Diligence  Documents  and
certificates  of public  officials,  certificates of officers of the Company and
MergerCo and  representations  and warranties of the Company and MergerCo in the
Transaction Documents,  all of which we assume to be true, correct and complete.
We have made no  investigation or review of any matters relating to the Company,
MergerCo or any other Person other than as expressly  listed herein.  We wish to
inform you that our knowledge is necessarily limited due to the limited scope of
our review. In addition, we have made no inquiry of the Company, MergerCo or any
other Person (including Governmental Entities) regarding,  and no review of, any
judgments, orders, decrees, franchises, licenses, certificates, permits or other
public  records or  agreements to which the Company or MergerCo is a party other
than the Due Diligence  Documents,  and our  "knowledge"  of any such matters is
accordingly limited.

We have assumed the  genuineness  of all  signatures,  the  authenticity  of all
documents  submitted to us as originals,  the  conformity to authentic  original
documents of all copies  submitted to us as  conformed,  certified or reproduced
copies and that the  certificates  for the Xtrana  Common  Stock  conform to the
specimen thereof we have reviewed and will be duly  countersigned and registered
by a transfer agent. We have also assumed the legal capacity of natural persons,
the corporate or other power and due  authorization of each person not a natural
person  other  than  the  Company  and  MergerCo  to  execute  and  deliver  the
Transaction  Documents and to consummate the  transactions  


                                      A-73



contemplated  by the  Transaction  Documents,  due execution and delivery of the
Transaction  Documents  by all  parties  thereto  other  than  the  Company  and
MergerCo,  and that the Transaction  Documents  constitute the legal,  valid and
binding  obligations  of each party thereto other than the Company and MergerCo,
enforceable against such party in accordance with its terms.

Based  upon  the   foregoing  and  subject  to  the   assumptions,   exceptions,
qualifications  and  limitations  set forth  hereinafter,  we are of the opinion
that:

1.       The Company is validly existing as a corporation in good standing under
the  laws of the  State  of  Delaware,  the  jurisdiction  of its  organization.
MergerCo is validly existing as a corporation in good standing under the laws of
the State of  California,  the  jurisdiction  of its  organization.  Each of the
Company  and  MergerCo  has  corporate  power  to  enter  into  the  Transaction
Documents.

2.       The execution and delivery of the Transaction  Documents by the Company
and MergerCo and the performance of their respective obligations thereunder have
been  duly  authorized  by all  necessary  corporate  action  on the part of the
Company and MergerCo.

3.       The Transaction  Documents have been duly executed and delivered by the
Company  and  MergerCo.  Each  Transaction  Document  to which  they are a party
constitutes   valid  and  binding   obligation  of  the  Company  and  MergerCo,
enforceable against the Company and MergerCo in accordance with its terms.

4.       The execution and delivery of the Transaction  Documents by the Company
and  MergerCo  do not,  and the  performance  of  their  respective  obligations
thereunder  will not,  result in any violation of any law, rule or regulation of
any Included Law (defined below).

5.       The execution and delivery of the Transaction  Documents by the Company
and  MergerCo  do not,  and the  performance  of  their  respective  obligations
thereunder  will not,  result in any violation of any order,  writ,  judgment or
decree known to us.

6.       The execution and delivery of the Transaction  Documents by the Company
and  MergerCo  do not,  and the  performance  of  their  respective  obligations
thereunder   will  not,  (a)  result  in  a  violation  of  the  Certificate  of
Incorporation  or Bylaws of the  Company or the  Articles  of  Incorporation  or
Bylaws of  MergerCo;  or (b)  breach  or  result  in a default  under any of the
Reviewed Agreements.

7.       No  authorization  or approval or other  action by, and no notice to or
filing with, any governmental authority or regulatory body (each, a "Filing") is
required  under any of the Included  Laws for the due  execution and delivery of
the  Transaction  Documents by the Company and MergerCo and performance of their
respective  obligations thereunder except for (a) the filing of the Agreement of
Merger with the California  Secretary of State of the State of  California,  (b)
Filings  required under Federal and state securities laws as contemplated by the
Agreement and (c) such Filings as have been obtained or made.

8.       The  authorized  capital  stock of the Company  consists of  50,000,000
shares of common stock,  par value $0.01 per share.  As of [______],  there were
[______]  shares of common  stock issued and  outstanding.  The shares of Xtrana
Common Stock to be issued  pursuant to the Agreement  have been duly  authorized
and, when issued and delivered  pursuant to the terms of the Agreement,  will be
validly issued, fully paid and nonassessable.

9.       The offer and sale of the  shares of Xtrana  Common  Stock to be issued
pursuant  to the  Agreement  are exempt  from the  registration  and  prospectus
delivery requirements of the Securities Act of 1933, as amended.

10.      To our actual knowledge,  the Company is not a party to any adversarial
action,  suit,  or  proceeding  pending  or  threatened  overtly  by  a  written
communication,  at law or in equity, or before any Federal,  state, municipal or
other   governmental   department,   commission,   board,   bureau,   agency  or
instrumentality.

The opinions and other  matters in this letter are  qualified in their  entirety
and subject to the following:


                                      A-74



A.       We express no opinion as to the laws of any jurisdiction other than the
Included Laws. We have made no special  investigation or review of any published
constitutions,   treaties,   laws,   rules  or   regulations   or   judicial  or
administrative  decisions  ("Laws"),  other than a review of (i) the Laws of the
State of California,  (ii) the General  Corporation Law of the State of Delaware
and (ii) the Federal Laws of the United States of America.  For purposes of this
opinion,  the term  "Included  Laws"  means the items  described  in clauses (i)
through (iii) of the preceding  sentence that are, in our  experience,  normally
applicable to transactions of the type  contemplated in the Agreement.  The term
Included Laws  specifically  excludes (a) Laws of any counties,  cities,  towns,
municipalities  and special political  subdivisions and any agencies thereof and
(b)  Laws  relating  to land  use,  zoning  and  building  code  issues,  taxes,
environmental issues,  intellectual property Laws, antitrust issues, and Federal
Reserve Board margin regulation issues.

B.       When used in this  letter,  the phrases  "known to us",  "to our actual
knowledge"  and similar  phrases (i) mean the  conscious  awareness  of facts or
other information by (a) the lawyer in our firm who signed this letter,  (b) any
lawyer in our firm actively involved in handling current matters for the Company
and (c) solely as to  information  relevant to a  particular  opinion,  issue or
confirmation  regarding a particular  factual matter, any lawyer in our firm who
is primarily  responsible for providing the response  concerning that particular
opinion,  issue or  confirmation,  and  (ii) do not  require  or  imply  (a) any
examination  of this  firm's,  such  lawyer's or any other  person's or entity's
files,  (b) that any inquiry be made of the client,  any lawyer  (other than the
lawyers  described  above),  or any other person or entity, or (c) any review or
examination of any  agreements,  documents,  certificates,  instruments or other
papers other than the Transaction Documents and the Due Diligence Documents.

C.       This letter and the matters  addressed herein are as of the date hereof
or such  earlier date as is specified  herein,  and we undertake  no, and hereby
disclaim  any,  obligation  to advise  you of any change in any matter set forth
herein,  whether  based on a change in the law, a change in any fact relating to
the  Company,  MergerCo or any other  Person,  or any other  circumstance.  This
opinion letter is limited to the matters expressly stated herein and no opinions
are to be inferred or may be implied  beyond the  opinions  expressly  set forth
herein.

D.       For purposes of this letter, the phrase  "transactions  contemplated by
the Agreement" and similar phrases mean the merger of MergerCo with and into the
Company pursuant to the Agreement and the other transactions contemplated by the
Agreement.

E.       The opinions expressed in the first two sentences of paragraph 1 herein
are given solely on the basis of certificates  of the Good Standing  Certificate
and speak only as of the dates  indicated  therein  rather than the date hereof.
The opinions are limited to the meaning  ascribed to such  certificates  by each
applicable State agency and applicable law.

F.       The matters  expressed in this letter are subject to and  qualified and
limited  by (i)  applicable  bankruptcy,  insolvency,  fraudulent  transfer  and
conveyance,  reorganization,  moratorium and similar laws  affecting  creditors'
rights and remedies  generally;  (ii) general  principles  of equity,  including
principles of commercial reasonableness, good faith and fair dealing (regardless
of whether  enforcement  is sought in a proceeding  at law or in equity);  (iii)
commercial  reasonableness and unconscionability and an implied covenant of good
faith and fair dealing; (iv) the power of the courts to award damages in lieu of
equitable  remedies;  and (v) securities laws and public policy  underlying such
laws with respect to rights to indemnification and contribution.

G.       With  respect to the  opinions  expressed  in  paragraph  8 herein with
respect to the number of issued and outstanding  shares of the Company's capital
stock, we have relied,  without any further inquiry, upon our examination of the
Company's Certificate of Incorporation, a statement from American Stock Transfer
& Trust Company,  the Company's  transfer agent,  and the Officer's  Certificate
from the Company.  With respect to the opinions  expressed in paragraph 8 herein
as to the shares of Xtrana  Common Stock to be issued  pursuant to the Agreement
being validly  issued,  fully paid and  nonassessable  when issued and delivered
pursuant  to the terms of the  Agreement,  we assume that the price per share of
such  issuance  will be at least  equal to the par value per share of the Xtrana
Common Stock.

H.       With respect to the opinion  expressed in paragraph 9 herein, we assume
that the Company will not issue any  securities  after the date hereof that will
be integrated with the offer and issuance of the Xtrana Common Stock pursuant to
the Agreement under applicable Federal and state securities laws.


                                      A-75



I.       We note  that the  choice  of law  provisions  in  Section  10.7 of the
Agreement select the laws of Delaware to apply to the Agreement. As explained in
paragraph  A above,  we are not  expressing  an  opinion  as to the Laws of that
jurisdiction  other the Delaware  General  Corporation  Law.  Accordingly,  with
respect to the opinions expressed in paragraph 2 and paragraph 4 of this letter,
we have assumed, with your concurrence, that the Laws of the State of California
had been  selected in such choice of law  provisions  to be the governing law of
the  Agreement.  We note that this  assumption  is  directly  in  conflict  with
specific terms of the Agreement.

J.       We  express no opinion  as to (i) the  compliance  of the  transactions
contemplated by the  Transaction  Documents with any regulations or governmental
requirements  applicable to any party other than the Company and MergerCo;  (ii)
the  financial  condition  or  solvency of the  Company or  MergerCo;  (iii) the
ability (financial or otherwise) of the Company,  MergerCo or any other party to
meet their  respective  obligations  under the Transaction  Documents;  (iv) the
compliance of the Transaction Documents or the transactions contemplated thereby
with,  or the effect of any of the  foregoing  with  respect  to, the  antifraud
provisions of the Federal and state securities laws, rules and regulations;  (v)
the  value of any  security  provided  to  secure  the  payment  of  obligations
contemplated  by the  Transaction  Documents;  and  (vi) the  conformity  of the
Transaction Documents to any term sheet or commitment letter.

K.       This letter is solely for your  benefit,  and no other person or entity
shall be entitled to rely upon this letter.  Without our prior written  consent,
this  letter may not be quoted in whole or in part or  otherwise  referred to in
any document  and may not be furnished or otherwise  disclosed to or used by any
other  Person,  except for (i)  delivery  of copies  hereof to  counsel  for the
addressees hereof,  (ii) inclusion of copies hereof in a closing file, and (iii)
use hereof in any legal proceeding arising out of the transactions  contemplated
by the Agreement filed by an addressee  hereof against this law firm or in which
any addressee hereof is a defendant.

L.       This law firm is a registered limited liability  partnership  organized
under the laws of the State of California.

Very truly yours,


                                      A-76



                                    EXHIBIT J

                                    ARTICLE I

         The  name  of this  corporation  is  Alpha  Innotech  Corporation  (the
"CORPORATION").

                                   ARTICLE II

         The  purpose  of the  Corporation  is to  engage in any  lawful  act or
activity for which a corporation may be organized under the General  Corporation
Law of California other than the banking business, the trust company business or
the practice of a  profession  permitted to be  incorporated  by the  California
Corporations Code.

                                   ARTICLE IV

         The  Corporation  is  authorized  to issue  only one class of shares of
stock, to be designated  Common Stock;  and the total number of shares which the
Corporation is authorized to issue is 1,000 no par value.

                                    ARTICLE V

         (a)      The liability of the directors of the Corporation for monetary
damages shall be eliminated to the fullest extent  permissible  under California
law.

         (b)      The  Corporation is authorized to provide  indemnification  of
agents (as defined in Section 317 of the  California  Corporations  Code) to the
fullest extent permissible under California law.

         (c)      Any  amendment,   repeal  or  modification  of  the  foregoing
provisions of this Article V by the  shareholders of the  corporation  shall not
adversely  affect  any  right  or  protection  of a  director  or  agent  of the
corporation existing at the time of such amendment repeal or modification.


                                      A-77



                                 AMENDMENT NO. 1

                                       TO

                          AGREEMENT AND PLAN OF MERGER


         This AMENDMENT NO. 1 TO AGREEMENT AND PLAN OF MERGER (the "AMENDMENT"),
made this 6th day of April,  2005 is entered into by and among  Xtrana,  Inc., a
Delaware   corporation   ("XTRANA"),   AIC  Merger  Corporation,   a  California
corporation  and  wholly-owned  subsidiary  of  Xtrana  ("MERGERCO"),  and Alpha
Innotech Corporation, a California corporation ("AIC"). Xtrana, MergerCo and AIC
are sometimes  referred to herein  individually as a "PARTY" and collectively as
the "PARTIES."

                                    RECITALS:

         A.       The Parties have entered into that certain  Agreement and Plan
of Merger dated  December  14, 2004 (the  "AGREEMENT"),  which  provides for the
merger of AIC with and into MergerCo on the term and conditions set forth in the
Agreement.  Capitalized  terms used herein and not otherwise  defined shall have
the meanings assigned thereto in the Agreement.

         B.       In  order  to  clarify  the  Parties  intended  definition  of
"Minimum  Closing  Date  Cash"  and in  light of  changes  to the  business  and
financial  condition  of AIC and in order to clarify  the  parties,  the Parties
desire to amend the  provisions of the Agreement on the terms and conditions set
forth herein.

                                   AGREEMENT:

         NOW, THEREFORE,  in consideration of the  representations,  warranties,
covenants and  agreements  contained in this  Amendment,  and for other good and
valuable  consideration,   the  receipt  and  sufficient  of  which  are  hereby
acknowledged, the parties hereto agree as follows:

         1.       AMENDMENT TO  DEFINITION  OF "MINIMUM  CLOSING DATE CASH." The
definition  of  "Minimum  Closing  Date  Cash" set forth in  Section  1.1 of the
Agreement is hereby amended to read as follows:

                  ""MINIMUM  CLOSING DATE CASH" means an amount equal to
         $2,950,000 LESS the sum of (i) the aggregate amount advanced to
         AIC by Xtrana  pursuant to the Promissory  Note, (ii) the Audit
         Fees,  and  (iii) all other  out-of-pocket  costs and  expenses
         incurred by Xtrana on or after  January 1, 2005 and through the
         Closing Date which would not have  otherwise  been  incurred by
         Xtrana but for delay in  consummation  of the Merger  resulting
         from  the   necessity  of  such  audit  of  the  AIC  financial
         statements,  including, but not limited to, the consulting fees
         of $5,000 per month payable to James Chamberlain for serving as
         interim Chief  Executive  Officer and interim  Chief  Financial
         Officer  of  Xtrana,  the  director  fees  incurred  by  Xtrana
         (consistent with past practice and policy), consulting fees for
         the  services of Dennis  Lineberry,  and similar  direct  costs
         incurred  after  January 1, 2005 and through the Closing  Date,
         but not  exceeding in the aggregate  


                                      A-78



         $15,000 per month,  unless  otherwise agreed in writing between
         AIC and Xtrana."

         2.       AMENDMENT TO EXCHANGE RATIO  DEFINITIONS.  The  definitions of
each of the terms "AIC Common Exchange Ratio," "AIC Series A Preferred  Exchange
Ratio" and "AIC  Series  A-1  Preferred  Ratio" set forth in Section  1.1 of the
Agreement are hereby  amended to add the  following  sentence to the end of each
such definition:

                  "The  foregoing  exchange  ratio  shall be  subject to
         further adjustment as provided in SECTION 2.9.1."

         3.       AMENDMENT TO SECTION  6.11.  Section 6.11 of the  Agreement is
hereby amended in its entirety to read as follows:

                  "6.11  DEFERRED  COMPENSATION.  At the Closing,  AIC's
         aggregate  obligations for all deferred  compensation  shall be
         not  more  than  $550,000  (the  "DEFERRED  COMPENSATION").   A
         schedule of the Deferred  Compensation will be delivered by AIC
         to  Xtrana  prior  the  Closing  and will be  attached  to this
         Agreement  as  SCHEDULE  6.11.  At or  promptly  following  the
         Closing, the Surviving  Corporation or Xtrana shall pay up to a
         total of $100,000 of the Deferred Compensation. Notwithstanding
         the foregoing,  all remaining  Deferred  Compensation  shall be
         paid by the Surviving Corporation or Xtrana by June 30, 2006."

         4.       CLOSING  CONDITIONS.  Section 7.2 of the  Agreement  is hereby
amended to add the following new Section 7.2.14 and Section 7.2.15:

                  "7.2.14 AIC shall have received  additional  financing
         of at least  $1,500,000  on  terms  and  conditions  reasonably
         acceptable to Xtrana,  and such  financing  shall not result in
         any dilution to the Xtrana  stockholders'  percentage ownership
         of the  issued  outstanding  shares  of  capital  stock  of the
         Surviving Entity at the Effective Time.

                  7.2.15  Each of Haseeb  Chaudhry  and Darryl Ray shall
         have  entered into an  amendment  to his  Employment  Agreement
         (together,   the  "EMPLOYMENT  AGREEMENT  AMENDMENTS"),   which
         Employment  Agreement  Amendments  shall  provide,  among other
         things,  for a  reduction  in annual  base  salary to  $100,000
         effective as of January 1, 2005 and shall  otherwise be in form
         and  substance   acceptable  to  Xtrana,   and  the  Employment
         Agreement  Amendments  shall be in full  force and effect as of
         the Closing."

         5.       RATIFICATION  OF REMAINING  TERMS.  Except as set forth above,
the remaining terms and conditions of the Agreement shall not be amended by this
Amendment  and shall remain in full force and effect,  and binding in accordance
with their respective terms.


                                      A-79



         6.       COUNTERPARTS.  This  Amendment  may be executed in two or more
counterparts, each of which shall constitute an original, but all of which, when
taken together, shall constitute one and the same instrument.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


                                      A-80



          IN WITNESS WHEREOF, the parties hereto have executed this Amendment as
of the date set forth in the first paragraph.



                                  ALPHA INNOTECH CORPORATION


                                  By:      /s/ Haseeb Chaudhry                
                                      ----------------------------------------
                                           Name:    Haseeb Chaudhry
                                           Title:   Chief Executive Officer


                                  XTRANA, INC.


                                  By:      /s/ James H. Chamberlain           
                                      ----------------------------------------
                                           Name:    James H. Chamberlain
                                           Title:   Chief Executive Officer


                                  AIC MERGER CORPORATION


                                  By:      /s/ James H. Chamberlain           
                                      ----------------------------------------
                                           Name:    James H. Chamberlain
                                           Title:   President


                                      A-81



                                 AMENDMENT NO. 2

                                       TO

                          AGREEMENT AND PLAN OF MERGER


         This AMENDMENT NO. 2 TO AGREEMENT AND PLAN OF MERGER (the "AMENDMENT"),
made as of the 6th day of July, 2005 is entered into by and among Xtrana,  Inc.,
a  Delaware  corporation  ("XTRANA"),   AIC  Merger  Corporation,  a  California
corporation  and  wholly-owned  subsidiary  of  Xtrana  ("MERGERCO"),  and Alpha
Innotech Corporation, a California corporation ("AIC"). Xtrana, MergerCo and AIC
are sometimes  referred to herein  individually as a "PARTY" and collectively as
the "PARTIES."

                                    RECITALS:

         A.       The Parties have entered into that certain  Agreement and Plan
of Merger dated  December 14, 2004,  as amended by Amendment  No. 1 to Agreement
and Plan of Merger  dated April 6, 2005 (as  amended,  the  "AGREEMENT"),  which
provides for the merger of AIC with and into MergerCo on the term and conditions
set forth in the  Agreement.  Capitalized  terms used  herein and not  otherwise
defined shall have the meanings assigned thereto in the Agreement.

         B.       The Parties desire to amend the provisions of the Agreement on
the terms and conditions set forth herein.

                                   AGREEMENT:

         NOW, THEREFORE,  in consideration of the  representations,  warranties,
covenants and  agreements  contained in this  Amendment,  and for other good and
valuable  consideration,   the  receipt  and  sufficient  of  which  are  hereby
acknowledged, the parties hereto agree as follows:

         1.       ADJUSTMENT  TO  EXCHANGE  RATIO  DEFINITIONS.  Pursuant to the
terms  of  the  Agreement,  the  Parties  hereby  acknowledge  and  agree  that,
notwithstanding  anything to the contrary set forth in the Agreement,  as of the
date hereof,  (a) the AIC Common Exchange Ratio shall be 0.1142909;  (b) the AIC
Series A Preferred Exchange Ratio shall be 0.3033634; and (c) the AIC Series A-1
Preferred Ratio shall be 0.3033634.

         2.       AMENDMENT TO SECTION 6.4. The first sentence of Section 6.4 of
the  Agreement is hereby  stricken  from the  Agreement  and  replaced  with the
following:

                  "As soon as  reasonably  practicable,  AIC shall  submit  this
         Agreement and the  transactions  contemplated  by this Agreement to the
         AIC Shareholders for approval and adoption."

         3.       REGISTRATION  COVENANT. The Agreement is hereby amended to add
the following new Section 6.17:


                                      A-82



                  "6.17  REGISTRATION  ON FORM S-3. In case Xtrana  shall at any
         time  after  the  Closing  become  eligible  to use  Form  S-3  for the
         registration of resale of securities by its  stockholders  and receives
         from any holder or holders of Registrable Securities (as defined below)
         a written request or requests that Xtrana effect a registration on Form
         S-3 with respect to all or a part of the Registrable  Securities  owned
         by such holder or holders,  then Xtrana will: (a) promptly give written
         notice  of  the  proposed  registration  and to all  other  holders  of
         Registrable   Securities;   and  (b)  as  soon  as   practicable,   use
         commercially  reasonable  efforts to effect such  registration as would
         permit or facilitate the sale and  distribution  of all or such portion
         of such holders or holders' Registrable  Securities as are specified in
         such  request,  together  with all or such  portion of the  Registrable
         Securities  of any other holder of  Registrable  Securities  joining in
         such request as are specified in a written  request given within twenty
         (20) days after Xtrana provides the notice  contemplated by clause (a).
         Notwithstanding the foregoing,  Xtrana shall not be obligated to effect
         any such  registration,  qualification  or compliance  pursuant to this
         SECTION 6.17 (i) if Form S-3 is not  available for such offering by the
         holders;  (ii) if the holders,  together  with the holders of any other
         securities  of  Xtrana  entitled  to  inclusion  in such  registration,
         propose to sell  Registrable  Securities and such other  securities (if
         any) at an aggregate price to the public of less than $1,000,000; (iii)
         if the Xtrana shall furnish to the holders a certificate  signed by the
         President or Chief Executive Officer of Xtrana stating that in the good
         faith  judgment  of the  Board  of  Directors  of  Xtrana,  it would be
         materially detrimental to Xtrana and its stockholders for such Form S-3
         registration  to be effected  at such time,  in which event the Company
         shall have the right to defer the  filing of the Form S-3  registration
         statement no more than once during any twelve month period for a period
         of not more than ninety  (90) days after  receipt of the request of the
         holder or holders under this SECTION 6.17;  (iii) if Xtrana has already
         effected a  registration  on Form S-3 pursuant to this SECTION 6.17; or
         (iv) in any particular  jurisdiction  in which Xtrana would be required
         to qualify to do business or to execute a general consent to service of
         process in effecting such  registration,  qualification  or compliance.
         For purposes hereof,  the term "REGISTRABLE  SECURITIES" means: (1) any
         Xtrana Common Stock held by an AIC  Shareholder  and issued to such AIC
         Shareholder  pursuant  to this  Agreement  and (2) any shares of Xtrana
         Common  Stock held by an AIC  Shareholder  and issued as a dividend  or
         other   distribution  with  respect  to,  or  in  exchange  for  or  in
         replacement  of, any shares of Xtrana Common Stock  described in clause
         (1)  of  this  definition;   PROVIDED,   HOWEVER,   that   "Registrable
         Securities"  shall exclude any Registrable  Securities sold in a public
         offering,  whether  sold  pursuant  to Rule 144  promulgated  under the
         Securities Act, or in a registered offering, or otherwise or securities
         which can be sold in accordance with Rule 144(k)  promulgated under the
         Securities Act."

         4.       AMENDMENT TO SECTION 7.1.2.  Section 7.1.2 of the Agreement is
hereby amended in its entirety to read as follows:

                  "7.1.2  REPRESENTATION  LETTERS. At or prior to Closing,  each
         AIC Shareholder  shall have delivered to Xtrana an executed  investment
         representation  


                                      A-83



         letter  containing  such  representations  as  required  to comply with
         applicable  provisions of the  Securities Act and otherwise in form and
         substance reasonably acceptable to Xtrana."

         5.       AMENDMENT TO SECTION 8.1.3.  Section 8.1.3 of the Agreement is
hereby amended in its entirety to read as follows:

                  "by  either  Xtrana or AIC if the  Merger  shall not have been
         consummated on or before  September 30, 2005 (other than as a result of
         the failure of the Party seeking to terminate this Agreement to perform
         its  obligations  under this  Agreement  required to be performed at or
         prior to the Effective Time);"

         6.       AMENDMENT  TO SECTION  9.4.  Section 9.4 of the  Agreement  is
hereby amended in its entirety to read as follows:

                   "9.4  LIMITATION ON CLAIMS.  No claims shall be payable under
          this  SECTION  9 with  respect  to any  Damages  unless  and until the
          aggregate  Damages  owing  under  this  SECTION  9 in  respect  of any
          Indemnitee  (as  defined  below)  exceed  $100,000,  in which case the
          Indemnitee shall be entitled to indemnification  from the indemnifying
          party  for all  Damages  without  regard  to such  threshold.  As used
          herein,  an  "INDEMNITEE"  means  one or more  of the AIC  Indemnified
          Parties or the  Xtrana  Indemnified  Parties  to the extent  that such
          parties seek  indemnification  from the other pursuant to this SECTION
          9. The  Xtrana  Indemnified  Parties'  sole and  exclusive  remedy for
          indemnification  claims against AIC under this Agreement shall consist
          of its right to set off any Damages  against the  Holdback  Shares and
          the  AIC   Indemnified   Parties'  sole  and   exclusive   remedy  for
          indemnification  claims  against  Xtrana  under this  Agreement  shall
          consist of their right to receive  additional  shares of Xtrana Common
          Stock out of the AIC  Indemnification  Shares, in either case pursuant
          to the procedure  described in SECTION 9.5 hereof.  No claims shall be
          payable with  respect to any  representation  or warranty  unless such
          claim is asserted in writing on or before 5:00 p.m.  Pacific  Standard
          Time on March 31, 2006 (the "INDEMNIFICATION TERMINATION PERIOD"). All
          Holdback  Shares not then  subject  to  indemnification  claims  under
          SECTION  9.3.2  hereof  shall  be  released  to the  AIC's  pre-Merger
          shareholders  pursuant to the terms of the Escrow  Agreement  upon the
          expiration  of  the   Indemnification   Termination  Period.  All  AIC
          Indemnification  Shares  not then  subject to  indemnification  claims
          under   SECTION  9.3.1  hereof  shall  be  released  from  escrow  and
          permanently  cancelled  pursuant  to the  Escrow  Agreement  upon  the
          expiration of the Indemnification Termination Period."

         7.       RATIFICATION  OF REMAINING  TERMS.  Except as set forth above,
the remaining terms and conditions of the Agreement shall not be amended by this
Amendment  and shall remain in full force and effect,  and binding in accordance
with their respective terms.


                                      A-84



         8.       COUNTERPARTS.  This  Amendment  may be executed in two or more
counterparts, each of which shall constitute an original, but all of which, when
taken together, shall constitute one and the same instrument.

          IN WITNESS WHEREOF, the parties hereto have executed this Amendment as
of the date set forth in the first paragraph.


                                    ALPHA INNOTECH CORPORATION


                                    By:      /S/ HASEEB CHAUDHRY                
                                        ----------------------------------------
                                             Name:    Haseeb Chaudhry
                                             Title:   Chief Executive Officer

                                    XTRANA, INC.


                                    By:      /S/ JAMES H. CHAMBERLAIN  
                                        ----------------------------------------
                                             Name:    James H. Chamberlain
                                             Title:   Chief Executive Officer

                                    AIC MERGER CORPORATION


                                    By:      /S/ JAMES H. CHAMBERLAIN  
                                        ----------------------------------------
                                             Name:    James H. Chamberlain
                                             Title:   President


                                      A-85



                                                                      APPENDIX B

                          OPINION OF FINANCIAL ADVISORS


April 21, 2005

Board of Directors
Xtrana, Inc.
P.O. Box 668 Sedalia, Colorado 80135

Members of the Board:

You have  advised  us that on  December  14,  2004,  Xtrana,  Inc.,  a  Delaware
corporation  ("Xtrana" or the "Company"),  AIC Merger Corporation,  a California
corporation and a wholly-owned  subsidiary of Xtrana  ("Xtrana Sub"),  and Alpha
Innotech Corporation,  a California  corporation ("Alpha Innotech") entered into
an  Agreement  and Plan of Merger  (the  "Merger  Agreement")  pursuant to which
Xtrana Sub will be merged  with and into Alpha  Innotech  (the  "Merger"),  with
Alpha Innotech  continuing  after the Merger as the surviving  corporation and a
wholly-owned  subsidiary of Xtrana. The common  shareholders of Xtrana and Alpha
Innotech will own 17 percent and 83 percent,  respectively,  of the  outstanding
shares of Xtrana  (excluding  options and warrants) upon the consummation of the
Merger.  Xtrana will also  deliver  cash of  approximately  $2.2  million at the
closing of the Merger. In addition,  pursuant to the Merger Agreement Xtrana has
previously  advanced Alpha Innotech  $500,000 pursuant to the terms of a secured
promissory  note.  The  Merger  Agreement  has  been  approved  by the  Board of
Directors of both Xtrana and Alpha Innotech. We further understand that on April
6, 2005,  Xtrana,  Xtrana Sub, and Alpha Innotech,  entered into an amendment to
the Merger Agreement (as amended, the "Merger Agreement").  The amendment to the
Merger Agreement was entered into to clarify the parties with respect to certain
provisions of the Merger Agreement and to make certain amendments to the closing
conditions for the Merger and the payment of certain deferred  compensation owed
to Alpha Innotech officers.

The material terms of the transactions contemplated by the Merger provide, among
others,  that pursuant to the Merger  Agreement,  at the  effective  time of the
Merger,  each  share of Alpha  Innotech  common  stock  will be  converted  into
approximately  0.1136072  shares of Xtrana  common stock and each share of Alpha
Innotech  Series A  Preferred  Stock and  Series  A-1  Preferred  Stock  will be
converted into  approximately  0.2868318  shares of Xtrana common stock, in each
case as such ratios may be adjusted as provided in the Merger  Agreement.  These
exchange ratios take into account a contemplated 1-for-10 reverse stock split of
Xtrana's common stock to be effected  immediately  prior to the Merger,  and the
Merger Agreement  provides that in no event shall the number of shares of Xtrana
common stock issued to the Alpha Innotech  shareholders exceed 83 percent of the
outstanding  shares of Xtrana common stock immediately  following the closing of
the Merger. All options to purchase shares of common stock of Alpha Innotech and
warrants to purchase shares of common stock or preferred stock of Alpha Innotech
outstanding  at the effective  time of the Merger will be assumed or replaced by
options, or warrants to


                                      B-1



purchase  Xtrana common  stock,  with  proportional  adjustment to the number of
underlying  shares and exercise  price of each option and warrant based upon the
relevant exchange ratios  identified above. All existing common  stockholders of
the  Company  prior  to the  Merger  are  referred  to  herein  as  the  "Public
Stockholders." The transactions described above and all related transactions are
referred to collectively herein as the "Transaction."

You have  requested us to render an opinion (the  "Opinion") as to the fairness,
from a financial point of view, to the Public  Stockholders,  of the Transaction
pursuant to the terms and  conditions  of the Merger  Agreement  relating to the
Transaction.  We will receive a fee for providing this Opinion.  The opinion fee
is not contingent upon the consummation of the Transaction. The Company has also
agreed to  indemnify  us against  certain  liabilities  in  connection  with our
services.

This Opinion does not, with your express  approval,  address the fairness of the
Transaction to creditors or any security holders of the Company,  either debt or
equity,  other than the  Public  Stockholders,  and we  expressly  disclaim  any
obligation to do so.

Further,  this  Opinion  does not  address  the  Company's  underlying  business
decision  to effect  the  Transaction.  You did not  request  us to, nor did we,
either  solicit  third party  indications  of interest or evaluate  any specific
third  party  proposals  relating  to the  acquisition  of all or a part  of the
Company.  We  did  not  participate  in the  negotiations  with  respect  to the
Transaction or advise you with respect to alternatives to it.

In  connection  with  this  Opinion,  we have made such  reviews,  analyses  and
inquiries,  as we have deemed necessary and appropriate under the circumstances.
Among other things, we have:

1.       met with certain  members of the senior  management  of the Company and
         Alpha Innotech to discuss the operations,  financial condition,  future
         prospects and projected  operations and  performance of the Company and
         Alpha Innotech;

2.       visited  certain  facilities and business  offices of Alpha Innotech in
         San Leandro,  California;  

3.       reviewed audited financial statements for Alpha Innotech for the fiscal
         years ended December 31, 2000, 2001, 2002, 2003 and 2004;

4.       reviewed the unaudited  financial  information,  internally prepared by
         management  of Alpha  Innotech,  relating  to the  operations  of Alpha
         Innotech,  including:  (i) the unaudited  consolidated balance sheet of
         Alpha Innotech and its subsidiaries, as of March 31, 2004 and March 31,
         2005,   and  the  related   consolidated   statements  of   operations,
         stockholders'  equity and cash flows for the three  months  ended March
         31, 2004 and March 31,  2005,  which Alpha  Innotech's  management  has
         represented  and  warranted  as the most current  financial  statements
         available;

5.       reviewed  certain  financial  projections  provided by Alpha Innotech's
         management relating to the Company for the fiscal years ending December
         31, 2005, 2006, 2007, 2008 and 2009;

6.       reviewed:  (i) the  Company's  Form  10-KSB for the fiscal  years ended
         December 31, 2002,  2003 and 2004,  including the audited  consolidated
         balance sheet of the Company and its  subsidiaries,  as of December 31,
         2002,  2003  and  2004,  and the  related  consolidated  statements  of
         operations,  stockholders'  equity and cash flows for the fiscal  years
         ended December 31, 2002, 2003 and 2004; and (ii) certain other publicly
         available  business and financial  information  related to the Company,
         which we deemed to be relevant;


                                      B-2



7.       reviewed the unaudited  financial  information,  internally prepared by
         management of the Company,  relating to the  operations of the Company,
         including:  (i) the unaudited consolidated balance sheet of the Company
         and its subsidiaries,  as of March 31, 2004 and March 31, 2005, and the
         related consolidated statements of operations, stockholders' equity and
         cash  flows for the three  months  ended  March 31,  2004 and March 31,
         2005,  which the Company's  management has represented and warranted as
         the most current financial statements available;

8.       reviewed  the  following  documents  and  agreements:  (i)  the  Merger
         Agreement  among  the  Company,  Xtrana  Sub and Alpha  Innotech  dated
         December 14, 2004; and (ii) the Amendment No. 1 to the Merger Agreement
         among the Company, Xtrana Sub and Alpha Innotech dated April 6, 2005;

9.       reviewed  certain other publicly  available  financial data for certain
         companies that we deem comparable to the Company; and

10.      conducted such other studies,  analyses and inquiries as we have deemed
         appropriate for purposes of this Opinion.

In  preparing  this  Opinion,  we  assumed  and  relied  on,  with your  express
permission,  the truth, accuracy and completeness of all information supplied or
otherwise,  including, without limitation, any financial information,  forecasts
or projections,  made available to us,  discussed with or reviewed by or for us,
or publicly available. In addition,  where appropriate,  we relied upon publicly
available information that we believed to be reliable,  accurate,  and complete;
however, we cannot guarantee the reliability,  accuracy,  or completeness of any
such  publicly  available  information.  We did  not  independently  verify  the
accuracy and completeness of the information provided to us and have not assumed
and expressly  disclaim any  responsibility  for  independently  verifying  such
information or undertaken any independent  evaluation or appraisal of any of the
assets or liabilities of the Company or been furnished with any such  evaluation
or  appraisal.  In  addition,  we did not  conduct,  and  have not  assumed  any
obligation to conduct,  any physical  inspection of the properties or facilities
of the  Company  and  Alpha  Innotech.  We  express  no  opinion  regarding  the
liquidation  value  of  any  entity.  Without  limiting  the  generality  of the
foregoing,  we  have  undertaken  no  independent  analysis  of any  pending  or
threatened   litigation,   possible   unasserted   claims  or  other  contingent
liabilities,  to which the Company or any of its affiliates is a party or may be
subject and, at the Company's direction and with its consent,  our Opinion makes
no  assumption  concerning,  and  therefore  does  not  consider,  the  possible
assertions of claims, outcomes or damages arising out of any such matters.

We  assumed,  with  your  and  Alpha  Innotech's  express  permission,  that the
financial forecast information  furnished to or discussed with us by the Company
and Alpha Innotech,  was prepared in a reasonable  manner and reflected the best
currently available estimates and judgment of the Company's management and Alpha
Innotech's  management as to the expected  future  financial  performance of the
Company and Alpha  Innotech,  and that there had been no material  change in the
assets,  financial  condition,  business or  prospects  of the Company and Alpha
Innotech since the date of the most recent  financial  statements made available
to us. This Opinion  expresses no view with respect to how the projections  were
obtained,  the  reasonableness of such projections,  or the assumptions on which
they were based. Further, we have relied, with your express permission, upon the
certifications,  representations and warranties of management of the Company and
Alpha Innotech that the Company's management and Alpha Innotech's  management is
not aware of any  facts or  circumstances  that  would  make any such  forecasts
inaccurate  or  misleading.  This  Opinion is  necessarily  based  upon  market,
economic and other  conditions  as they exist and can be  evaluated,  and on the
information made available to us, as of the date of this Opinion. Any subsequent
change in such conditions  could  materially  affect the assumptions used in the
Opinion and would require a reevaluation  of such Opinion.  Although  subsequent
developments may affect this


                                      B-3



Opinion,  we have  assumed no  obligation  to update,  revise or  reaffirm  such
opinion,  and we expressly  disclaim any  obligation to do so. In rendering this
Opinion, we assumed,  with your permission,  that the proposed Transaction would
be consummated  substantially  on the terms  discussed in the Merger  Agreement,
without any waiver of any material  terms or  conditions  by any party  thereto.
Without  limiting  the  generality  of the  foregoing,  for the  purpose of this
Opinion,  we have assumed that the Company and Alpha Innotech are not a party to
any pending transaction, including external financings, recapitalizations, asset
sales, acquisitions or merger discussions,  other than the Transaction or in the
ordinary  course  of  business.  We have  also  assumed  that all the  necessary
regulatory  approvals and consents required for the Transaction will be obtained
in a manner  that  will not  change  the  consideration  to be  received  by the
Company.  This  Opinion  expresses  no  opinion  as to the  price at  which  the
Company's  Common  Stock will trade in the future.  This  Opinion  does not give
consideration  to the tax effect of the proposed  Transaction on the Company and
Alpha  Innotech or the  shareholders  of the  Company and Alpha  Innotech in the
United States or in any other jurisdiction.

This Opinion does not address the  underlying  decision of the Company to engage
in the  Transaction  and does not  constitute a  recommendation  to the Board of
Directors,  or to any  shareholder  of the  Company  as to how such  shareholder
should vote or as to any other action such shareholder should take in connection
with the Transaction.

Based upon the foregoing,  and in reliance  thereon,  it is our opinion that the
Transaction,   is  fair,   from  a  financial  point  of  view,  to  the  Public
Stockholders, pursuant to the terms and conditions of the Merger Agreement.

This Opinion is for the use and benefit of the  Company's  Board of Directors in
its  evaluation  of the  Transaction  and shall not be used by any other  person
without our prior  written  consent.  This Opinion is delivered to the Company's
Board of Directors subject to the conditions,  scope of engagement,  limitations
and  understandings  set forth in this Opinion and our  engagement  letter,  and
subject to the  understanding  that the  obligations  of The Mentor Group,  Inc.
("TMG") in the Transaction  are solely  corporate  obligations,  and no officer,
director,  employee,  agent,  shareholder or controlling  person of TMG shall be
subjected to any personal liability  whatsoever to any person, nor will any such
claim be asserted by or on behalf of you or your affiliates. Except with respect
to the use of this Opinion in connection  with the Proxy  Statement  relating to
the  Transaction,  this Opinion  shall not be published or otherwise  used,  nor
shall any public references to us be made, without our prior written approval.


/s/ THE MENTOR GROUP, INC.


                                      B-4



                                                                      APPENDIX C

                           ALPHA INNOTECH CORPORATION


                        UNAUDITED FINANCIAL INFORMATION

                   FOR THE THREE MONTHS ENDED MARCH 31, 2005


                                                                            PAGE
                                                                            ----

Consolidated Balance Sheets .............................................   C-2

Consolidated Statements of Operations ...................................   C-3

Consolidated Statements of Changes in Shareholders' Deficit .............   C-4

Consolidated Statements of Cash Flows ...................................   C-5

Notes to Consolidated Financial Statements ..............................   C-6


                                      C-1




                           ALPHA INNOTECH CORPORATION

                      CONDENSED CONSOLIDATED BALANCE SHEETS
                   AS OF MARCH 31, 2005 AND DECEMBER 31, 2004
                                   (Unaudited)


                                                         MARCH 31,     DECEMBER 31,
                                                           2005            2004
                                                       ------------    ------------
                                                                          
                     ASSETS
Current assets:
     Cash and cash equivalents .....................   $    141,743    $     40,174
     Accounts receivable, net ......................      1,570,746       1,975,554
     Inventory, net ................................        718,068         724,591
     Prepaid expenses and other current assets .....        108,643         170,038
                                                       ------------    ------------

         Total current assets ......................      2,539,200       2,910,357

Property and equipment, net ........................      1,292,590       1,433,679

Other assets .......................................         79,670          79,670
                                                       ------------    ------------

     Total assets ..................................   $  3,911,460    $  4,423,706
                                                       ============    ============

LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED
      STOCK AND SHAREHOLDERS' DEFICIT
Current liabilities:
     Accounts payable ..............................   $  1,833,294    $  1,616,771
     Accrued liabilities ...........................      1,037,072       1,088,545
     Debt ..........................................      1,608,718       1,610,046
     Deferred revenue ..............................        578,651         575,044
     Other liabilities .............................        189,119         181,369
                                                       ------------    ------------

         Total current liabilities .................      5,246,854       5,071,775
                                                       ------------    ------------

Commitments and contingencies ......................           --              --
                                                       ------------    ------------

Redeemable Convertible Preferred stock, no
     par value, authorized 24,000,000 shares:
         Series A, issued and outstanding
            10,533,334 and 10,533,334 shares
            (liquidation value of $7,900,001 at
            March 31, 2005 and December 31, 2005) ..     10,445,293      10,273,256
         Series A-1, issued and outstanding
            7,343,418 and 7,343,418 shares 
            (liquidation value of $2,203,027 at
            March 31, 2005 and December 31, 2005) ..      2,226,200       2,180,733
                                                       ------------    ------------

                  Total redeemable convertible
                     preferred stock ...............     12,671,493      12,453,989
                                                       ------------    ------------

Shareholders' deficit:
     Common stock, Series A, no par value per share:
         Authorized 60,000,000 shares
         Issued and outstanding 23,179,287 and
            23,177,526 shares ......................      1,147,403       1,146,945
     Accumulated deficit ...........................    (15,154,290)    (14,249,003)
                                                       ------------    ------------

         Total shareholders' deficit ...............    (14,006,887)    (13,102,058)
                                                       ------------    ------------

              Total liabilities, redeemable
                 convertible preferred stock and
                 shareholders' deficit .............   $  3,911,460    $  4,423,706
                                                       ============    ============



The  accompanying  notes are an integral  part of these  condensed  consolidated
financial statements.


                                      C-2



                           ALPHA INNOTECH CORPORATION

                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
               FOR THE THREE MONTHS ENDED MARCH 31, 2005 AND 2004
                                   (Unaudited)

                                                       2005             2004
                                                   -----------      -----------

Revenue ......................................     $ 2,505,360      $ 1,906,672

Cost of goods sold ...........................       1,405,295        1,015,390
                                                   -----------      -----------

     Gross profit ............................       1,100,065          891,282
                                                   -----------      -----------

Operating expenses:
     Sales and marketing .....................       1,060,509          822,129
     Research and development expenses .......         397,488          488,815
     General and administrative expenses .....         285,337          326,225
                                                   -----------      -----------

         Total operating expenses ............       1,743,334        1,637,169
                                                   -----------      -----------

              Loss from operations ...........        (643,269)        (745,887)

Other income (expense):
     Interest expense ........................         (43,006)         (61,904)
     Other income (expense), net .............          (1,508)            (454)
                                                   -----------      -----------

         Total other income (expense) ........         (44,514)         (62,358)
                                                   -----------      -----------

              Net loss .......................     $  (687,783)     $  (808,245)
                                                   ===========      ===========


The  accompanying  notes are an integral  part of these  condensed  consolidated
financial statements.


                                      C-3




                           ALPHA INNOTECH CORPORATION

      CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT
                    FOR THE THREE MONTHS ENDED MARCH 31, 2005
                                   (Unaudited)



                                              Redeemable Convertible Preferred Stock         
                                    ---------------------------------------------------------
                                              Series A                    Series A-1
                                    ---------------------------   --------------------------
                                                                                             
                                       Number                         Number                 
                                     of Shares        Value         of Shares       Value    
                                    ------------   ------------   ------------   ------------
                                                                              
Balance at January 1, 2005 ......     10,533,334   $ 10,273,256      7,343,418   $  2,180,733
Accretion of preferred stock to
   redemption value .............           --           14,037           --            1,406
Accretion of cumulative preferred
   dividend .....................           --          158,000           --           44,061
Exercise of stock option for cash           --             --             --             --   
Net loss ........................           --             --             --             --   
                                    ------------   ------------   ------------   ------------
Balance at March 31, 2005 .......     10,533,334   $ 10,445,293      7,343,418   $  2,226,200
                                    ============   ============   ============   ============



                                            Common Stock
                                    ---------------------------
                                                                
                                                                
                                       Number                     Accumulated
                                     of Shares        Value         Deficit          Total
                                    ------------   ------------   ------------    ------------
                                                                              


Balance at January 1, 2005 ......     23,177,526   $  1,146,945   $(14,249,003)   $(13,102,058)
Accretion of preferred stock to
   redemption value .............           --             --          (15,443)        (15,443)
Accretion of cumulative preferred
   dividend .....................           --             --         (202,061)       (202,061)
Exercise of stock option for cash          1,761            458           --               458
Net loss ........................           --             --         (687,783)       (687,783)
                                    ------------   ------------   ------------    ------------
Balance at March 31, 2005 .......     23,179,287   $  1,147,403   $(15,154,290)   $(14,006,887)
                                    ============   ============   ============    ============



The  accompanying  notes are an integral  part of these  condensed  consolidated
financial statements.


                                      C-4




                           ALPHA INNOTECH CORPORATION

                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
               FOR THE THREE MONTHS ENDED MARCH 31, 2005 AND 2004
                                   (Unaudited)


                                                                                2005         2004
                                                                             ---------    ---------
                                                                                           
Cash flows from operating activities:
     Net loss ............................................................   $(687,783)   $(808,245)
     Adjustments to reconcile net income to net cash provided by (used in)
         operating activities:
              Depreciation and amortization ..............................     172,970      197,201
              Allowance for sales returns and doubtful accounts ..........      21,088        1,316
              Allowance for excess and obsolete inventory ................        (387)       7,515
              Amortization of deferred stock-based compensation ..........        --            921
              Change in operating assets and liabilities:
                  Accounts receivables ...................................     383,720      572,914
                  Inventories ............................................       6,910      209,162
                  Prepaid expenses and other current assets ..............      61,395       23,523
                  Other assets ...........................................        --         (2,420)
                  Accounts payable .......................................     216,523     (282,306)
                  Accrued liabilities ....................................     (51,473)      54,926
                  Other current liabilities ..............................       7,750       13,892
                  Deferred revenue .......................................       3,607      (56,902)
                                                                             ---------    ---------

                      Net cash provided by (used in) operating activities      134,320      (68,501)
                                                                             ---------    ---------

Cash flows from investing activities:
     Purchase of property and equipment ..................................     (31,881)     (98,745)
                                                                             ---------    ---------

         Net cash used in investing activities ...........................     (31,881)     (98,745)
                                                                             ---------    ---------

Cash flows from financing activities:
     Proceeds from borrowing of debt obligation ..........................        --        461,929
     Repayment of debt obligation ........................................      (1,328)    (740,504)
     Proceeds from issuance of convertible notes .........................        --        337,247
     Proceeds from exercise of common stock options ......................         458        2,967
                                                                             ---------    ---------

         Net cash provided by (used in) financing activities .............        (870)      61,639
                                                                             ---------    ---------

              Net increase (decrease) in cash and cash equivalents .......     101,569     (105,608)

Cash and cash equivalents at the beginning of the period .................      40,174      172,497
                                                                             ---------    ---------

     Cash and cash equivalents at the end of the period ..................   $ 141,743    $  66,889
                                                                             =========    =========

Supplemental disclosures of cash flow information:
     Interest paid during the year .......................................   $  43,006    $  61,904
                                                                             =========    =========
     Income taxes paid during the year ...................................   $    --      $    --
                                                                             =========    =========

Supplemental disclosure of non-cash investing and financing activities:
     Accretion of preferred stock to redemption value ....................   $ 217,504    $ 176,101
                                                                             =========    =========



The  accompanying  notes are an integral  part of these  condensed  consolidated
financial statements.


                                      C-5



                           ALPHA INNOTECH CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS


1.       FORMATION AND BUSINESS OF THE COMPANY

         GENERAL - Alpha Innotech Corporation and subsidiary (the "company") was
         incorporated  and  began  operations  in June,  1992,  in the  state of
         California,  with  facilities in San Leandro,  California.  The Company
         develops and markets digital  imaging systems for image  documentation,
         quantitative analysis, and image archiving. These systems are used with
         electrophoresis samples (gel, blots, autoradiographs,  etc), microscopy
         applications,  and general imaging from insects to culture plates.  The
         Company has a wholly owned subsidiary, Alpha Innotech Limited, which is
         located in the UK and commenced sales operation in September 2001. This
         office location closed its operations in August 2003.

         The Company obtained an additional  convertible notes payable financing
         offering totaling $674,494 during March and September of 2004. However,
         the Company continues to incur losses. For the three months ended March
         31, 2005, the Company  incurred a loss from  operations of $687,783 and
         positive  cash flows from  operations  of  $134,320,  and has a working
         capital  deficiency as of March 31, 2005.  Management expects operating
         losses to continue for the  foreseeable  future  because of  additional
         costs and  expenses  related to research  and  development  activities.
         Failure to generate  sufficient  revenues,  raise additional capital or
         reduce certain  discretionary  spending  could have a material  adverse
         effect on the  Company's  ability  to  achieve  its  intended  business
         objectives.

         GOING  CONCERN  - The  accompanying  condensed  consolidated  financial
         statements   have  been   prepared  on  a  going   concern  basis  that
         contemplates  the realization of assets and discharge of liabilities in
         the normal course of business. From inception, the Company has incurred
         recurring losses from operation totaling  approximately $15 million and
         has been unable to generate  positive cash flow from operations.  These
         conditions  raise  substantial  doubts about the  Company's  ability to
         continue  as a going  concern.  The  Company  has been able to fund its
         operating losses to date primarily through the sale of preferred stock.
         The ability of the Company to manage its operating  expenses to a level
         that can be  financed by  existing  cash is  critical to the  Company's
         ability to  continue  as a going  concern.  Management  plans to manage
         expenses and obtain  additional  funds  through a reverse  merge with a
         public company. The condensed  consolidated financial statements do not
         include any  adjustments to reflect the possible  future effects on the
         recoverability   and  classification  of  assets  or  the  amounts  and
         classification  of liabilities that may result from the outcome of this
         uncertainty.

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

         BASIS OF PRESENTATION - The accompanying interim condensed consolidated
         financial  statements  do not include all  disclosures  included in the
         consolidated financial statements for the year ended December 31, 2004,
         and therefore,  these consolidated  financial statements should be read
         in  conjunction  with  the  interim  condensed  consolidated  financial
         statements included in this proxy.

         In the opinion of  management,  these  interim  condensed  consolidated
         financial  statements  reflect  all  adjustments  necessary  for a fair
         presentation of the financial position, results of operations, and cash
         flows for the interim periods and dates presented.

         STOCK-BASED   COMPENSATION  -  The  Company  has  adopted  the  interim
         disclosure  provisions  of SFAS No. 148,  "ACCOUNTING  FOR  STOCK-BASED
         COMPENSATION-TRANSITION  AND DISCLOSURES."  Related interim disclosures
         are as follows.


                                      C-6



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

         The Company measures  compensation expense for its employee stock-based
         compensation  awards using the intrinsic  value method and provides pro
         forma  disclosures  of net loss and loss per  share as if a fair  value
         method has been  applied.  Therefore,  compensation  cost for  employee
         stock  awards is measured  as the excess,  if any, of the fair value of
         our  common  stock at the  grant  date or  remeasurement  date over the
         amount an employee must pay to acquire the stock and is amortized  over
         the  related   service   periods   using  the   straight-line   method.
         Compensation   expense   previously   recorded  for  unvested  employee
         stock-based  compensation  awards that are forfeited  upon the employee
         termination is reversed in the period of forfeiture.

         Had  compensation  cost  for the  Company's  stock  option  plans  been
         determined  based on the fair market value at the grant dates for stock
         options granted consistent with the provision of SFAS 123, the expense,
         net of the  related  tax  effect,  would  have been  immaterial  to the
         Company's net loss.

3.       BALANCE SHEET COMPONENTS

                                                      March 31,     December 31,
                                                        2005            2004
                                                     -----------    -----------

ACCOUNTS RECEIVABLE, NET
     Accounts receivable .........................   $ 1,674,216    $ 2,057,935
     Less allowance for sales returns ............       (56,092)       (35,003)
     Less allowance for doubtful accounts ........       (47,378)       (47,378)
                                                     -----------    -----------

         Accounts receivable, net ................   $ 1,570,746    $ 1,975,554
                                                     ===========    ===========

INVENTORY, NET
     Raw material ................................   $   727,064    $   774,425
     Finished Goods ..............................        42,206         17,900
     Inventory in transit ........................        29,192         13,047
     Less allowance for excess and obsolete
        inventory ................................       (80,394)       (80,781)
                                                     -----------    -----------

         Inventory, net ..........................   $   718,068    $   724,591
                                                     ===========    ===========

PROPERTY AND EQUIPMENT
     Machinery and equipment .....................   $   353,108    $   353,108
     Furniture and fixtures ......................       203,265        203,265
     Leasehold improvements ......................     1,507,500      1,507,500
     Loaner and demonstration units ..............     1,112,743      1,109,707
     Computers ...................................       299,733        299,733
     Software ....................................        87,477         87,477
                                                     -----------    -----------

         Property and equipment ..................     3,563,826      3,560,791

Less accumulated depreciation and amortization ...    (2,271,236)    (2,127,111)
                                                     -----------    -----------

         Property and equipment, net .............   $ 1,292,590    $ 1,433,679
                                                     ===========    ===========


                                      C-7



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


3.       BALANCE SHEET COMPONENTS

                                              March 31,      December 31,
                                                2005            2004
                                             ----------      ----------

         ACCRUED LIABILITIES
              Payroll and related .....      $  610,099      $  626,489
              Warranty ................         112,510         100,717
              Audit and tax accrual ...          41,056          72,750
              Finder's fee ............         175,000         175,000
              Other ...................          98,407         113,589
                                             ----------      ----------

                  Accrued liabilities .      $1,037,072      $1,088,545
                                             ==========      ==========

4.       XTRANA MERGER

         On December 14, 2004, Xtrana, Inc., a Delaware corporation  ("Xtrana"),
         AIC Merger  Corporation,  a California  corporation  and a wholly-owned
         subsidiary of Xtrana  ("Xtrana  Sub"),  and the Company entered into an
         Agreement  and Plan of  Merger  pursuant  to which  Xtrana  Sub will be
         merged with and into the Company, with the Company continuing after the
         Merger as the surviving  corporation  and a wholly-owned  subsidiary of
         Xtrana. This plan of merger has yet to be completed.

5.       SUBSEQUENT EVENT

         On  April  8,  2005,  the  Company  secured  a loan  in the  amount  of
         $1,500,000 from Alexandria Finance, LLC. The loan bears interest at the
         rate of 12.5%  per annum and the  outstanding  principal  amount of the
         loan is due and payable in 30 equal monthly  installments  beginning on
         November  1,  2005.  The  obligations  under the loan are  secured by a
         second priority lien and security  interest in substantially all assets
         of the Company. The Company has issued a seven-year warrant to purchase
         900,000  shares of its Common  Stock at a  purchase  price of $0.20 per
         share in connection with this loan financing.


                                      C-8



                           ALPHA INNOTECH CORPORATION

                        CONSOLIDATED FINANCIAL STATEMENTS
                 FOR THE YEARS ENDED DECEMBER 31, 2004 AND 2003
                       WITH REPORT OF INDEPENDENT AUDITORS


                                TABLE OF CONTENTS


                                                                            PAGE
                                                                            ----

Report of Independent Auditors ..........................................   C-10

Consolidated Balance Sheets .............................................   C-11

Consolidated Statements of Operations ...................................   C-12

Consolidated Statements of Changes in Shareholders' Deficit .............   C-13

Consolidated Statements of Cash Flows ...................................   C-14

Notes to Consolidated Financial Statements ..............................   C-15


                                       C-9



                         REPORT OF INDEPENDENT AUDITORS





To Board of Directors and Shareholders of
Alpha Innotech Corporation


We have audited the accompanying  consolidated  balance sheets of Alpha Innotech
Corporation and its subsidiary as of December 31, 2004 and 2003, and the related
consolidated  statements of operations,  changes in shareholders'  deficit,  and
cash flows for the years then ended. These consolidated financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these consolidated financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audit to obtain reasonable  assurance about whether the consolidated
financial  statements  are free of  material  misstatement.  An  audit  includes
examining,  on a test basis,  evidence supporting the amounts and disclosures in
the  consolidated  financial  statements.  An audit also includes  assessing the
accounting principles used and significant estimates made by management, as well
as evaluating the overall  consolidated  financial  statement  presentation.  We
believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly,  in all material  respects,  the  financial  position of Alpha  Innotech
Corporation and its subsidiary as of December 31, 2004 and 2003, and the results
of their  operations and their cash flows for the years then ended in conformity
with accounting principles generally accepted in the United States of America.

The accompanying  consolidated  financial statements have been prepared assuming
that Alpha  Innotech  Corporation  and its  subsidiary  will continue as a going
concern. As discussed in Note 1 to the consolidated financial statements,  Alpha
Innotech Corporation and its subsidiary has incurred losses from operations that
raise  substantial  doubt  about its  ability to  continue  as a going  concern.
Management's  plans in regard to these matters are also described in Note 1. The
financial  statements do not include any adjustments  that might result from the
outcome of this uncertainty.

As  discussed  in Note 11 to the  consolidated  financial  statements,  an error
resulting in the omission of deferred  revenue being recorded as of December 31,
2002 was  discovered by management of Alpha Innotech  Corporation  subsequent to
the issuance of the prior auditors'  report on those  statements dated March 24,
2004.  Accordingly,  an adjustment  has been made to  accumulated  deficit as of
January 1, 2003 to correct the error.


/s/ Rowbotham & Company LLP
---------------------------

San Francisco, California
March 4, 2005


                                      C-10



                           ALPHA INNOTECH CORPORATION

                           CONSOLIDATED BALANCE SHEETS
                        AS OF DECEMBER 31, 2004 AND 2003


                                                       2004            2003
                                                   ------------    ------------

                   ASSETS
Current assets:
     Cash and cash equivalents .................   $     40,174    $    172,497
     Accounts receivable, net ..................      1,975,554       1,313,652
     Inventory, net ............................        724,591       1,276,431
     Prepaid expenses and other current assets .        170,038         169,157
                                                   ------------    ------------

         Total current assets ..................      2,910,357       2,931,737

Property and equipment, net ....................      1,433,679       1,835,664

Other assets ...................................         79,670          79,751
                                                   ------------    ------------

     Total assets ..............................   $  4,423,706    $  4,847,152
                                                   ============    ============

LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED
     STOCK AND SHAREHOLDERS' DEFICIT
Current liabilities:
     Accounts payable ..........................   $  1,616,771    $  1,178,613
     Accrued liabilities .......................      1,088,545       1,042,242
     Debt ......................................      1,610,046       2,044,381
     Deferred revenue ..........................        575,044         524,883
     Other liabilities .........................        181,369         261,627
                                                   ------------    ------------

         Total current liabilities .............      5,071,775       5,051,746
                                                   ------------    ------------

Commitments and contingencies ..................           --              --
                                                   ------------    ------------

Redeemable Convertible Preferred stock, no par
     value, authorized 24,000,000 shares:
         Series A, issued and outstanding
             10,533,334 and 10,533,334 shares 
             (liquidation value of $7,900,001
             at December 31, 2004 and 2003) ....     10,273,256       9,568,853
         Series A-1, issued and outstanding
             7,343,418 and none shares 
             (liquidation value of $2,203,027
             at December 31, 2004 and 2003) ....      2,180,733            --
                                                   ------------    ------------

         Total redeemable convertible
             preferred stock ...................     12,453,989       9,568,853
                                                   ------------    ------------

Shareholders' deficit:
     Common stock, Series A, no par value per
         share:
         Authorized 60,000,000 shares
         Issued and outstanding 23,170,344 and
             23,177,526 shares .................      1,146,945         477,082
     Deferred stock-based compensation .........           --            (3,684)
     Accumulated deficit .......................    (14,249,003)    (10,246,845)
                                                   ------------    ------------

         Total shareholders' deficit ...........    (13,102,058)     (9,773,447)
                                                   ------------    ------------

         Total liabilities, redeemable
             convertible preferred stock and
             shareholders' deficit .............   $  4,423,706    $  4,847,152
                                                   ============    ============

The  accompanying  notes are an integral  part of these  consolidated  financial
statements.


                                      C-11



                           ALPHA INNOTECH CORPORATION

                      CONSOLIDATED STATEMENTS OF OPERATIONS
                 FOR THE YEARS ENDED DECEMBER 31, 2004 AND 2003


                                                      2004            2003
                                                 ------------     ------------

Revenue ......................................    $ 10,511,334     $ 10,492,745

Cost of goods sold ...........................       5,377,952        5,331,406
                                                  ------------     ------------

     Gross profit ............................       5,133,382        5,161,339
                                                  ------------     ------------

Operating expenses:
     Sales and marketing .....................       3,924,775        3,570,872
     Research and development expenses .......       1,962,857        1,662,324
     General and administrative expenses .....       1,968,638        1,600,065
                                                  ------------     ------------

         Total operating expenses ............       7,856,270        6,833,261
                                                  ------------     ------------

              Loss from operations ...........      (2,722,888)      (1,671,922)

Other income (expense):
     Interest expense ........................        (573,500)        (320,745)
     Other income (expense), net .............          (1,367)          (7,799)
                                                  ------------     ------------

         Total other income (expense) ........        (574,867)        (328,544)
                                                  ------------     ------------

              Net loss .......................    $ (3,297,755)    $ (2,000,466)
                                                  ============     ============


The  accompanying  notes are an integral  part of these  consolidated  financial
statements.


                                      C-12




                           ALPHA INNOTECH CORPORATION

           CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT
                 FOR THE YEARS ENDED DECEMBER 31, 2004 AND 2003


                                                        Redeemable Convertible Preferred Stock 
                                               ---------------------------------------------------------
                                                       Series A                      Series A-1
                                               ---------------------------   ---------------------------
                                                                                                      
                                                 Number                         Number                
                                                of Shares        Value        of Shares        Value  
                                               ------------   ------------   ------------   ------------

                                                                                          
Balance at December 31, 2002 ...............     10,533,334   $  8,864,450           --     $       --   
Prior year retained earnings adjustment ....           --             --             --             --   
                                               ------------   ------------   ------------   ------------

Balance at December 31, 2002 - restated ....     10,533,334      8,864,450           --             --   
Accretion of preferred stock to redemption
   value ...................................           --           72,403           --             --   
Accretion of cumulative preferred dividend .           --          632,000           --             --   
Issuance of stock options for consulting
   services ................................           --             --             --             --   
Amortization of deferred stock-based
   compensation ............................           --             --             --             --   
Exercise of stock option for cash ..........           --             --             --             --   
Net loss ...................................           --             --             --             --   
                                               ------------   ------------   ------------   ------------

Balance at December 31, 2003 ...............     10,533,334      9,568,853           --             --   
Accretion of preferred stock to redemption
   value ...................................           --           72,403           --             --   
Accretion of cumulative pref ...............           --          632,000           --             --   

Accretion of cumulative pref ...............           --             --             --         (632,000)

Issuance of Series A-1 convertible
   preferred share for cash, net of
   issuance costs of $22,295 ...............           --             --        7,343,418      2,180,733
Issuance of common stock warrants in
   connection with convertible notes payable           --             --             --             --   
Issuance of common stock warrants with
   convertible notes payable ...............           --             --             --             --   
Issuance of common stock warrants in lieu
   of compensation .........................           --             --             --             --   
Amortization of deferred stock-based
   compensation ............................           --             --             --             --   
Exercise of stock option for cash ..........           --             --             --             --   
Net loss ...................................           --             --             --             --   
                                               ------------   ------------   ------------   ------------

Balance at December 31, 2004 ...............     10,533,334   $ 10,273,256      7,343,418   $  2,180,733
                                               ============   ============   ============   ============



                                                      Common Stock
                                               ----------------------------
                                                                                Deferred
                                                  Number                      Stock-Based      Accumulated                          
                                                of Shares          Value      Compensation       Deficit          Total
                                               ------------    ------------   ------------    ------------    ------------
                                                                                                         
Balance at December 31, 2002 ...............     23,108,625    $    455,805   $    (25,719)   $ (6,903,496)   $ (6,473,410)
Prior year retained earnings adjustment ....           --              --             --          (638,480)       (638,480)
                                               ------------    ------------   ------------    ------------    ------------

Balance at December 31, 2002 - restated ....     23,108,625         455,805        (25,719)     (7,541,976)     (7,111,890)
Accretion of preferred stock to redemption
   value ...................................           --              --             --           (72,403)        (72,403)
Accretion of cumulative preferred dividend .           --              --             --          (632,000)       (632,000)
Issuance of stock options for consulting
   services ................................           --             3,672         (3,672)           --              --
Amortization of deferred stock-based
   compensation ............................           --              --           25,707            --            25,707
Exercise of stock option for cash ..........         61,719          17,605           --              --            17,605
Net loss ...................................           --              --             --        (2,000,466)     (2,000,466)
                                               ------------    ------------   ------------    ------------    ------------

Balance at December 31, 2003 ...............     23,170,344         477,082         (3,684)    (10,246,845)     (9,773,447)
Accretion of preferred stock to redemption
   value ...................................           --              --             --           (72,403)        (72,403)
Accretion of cumulative pref ...............

Accretion of cumulative pref ...............       (632,000)

Issuance of Series A-1 convertible
   preferred share for cash, net of
   issuance costs of $22,295 ...............           --              --             --              --              --
Issuance of common stock warrants in
   connection with convertible notes payable           --           240,000           --              --           240,000
Issuance of common stock warrants with
   convertible notes payable ...............           --            65,036           --              --            65,036
Issuance of common stock warrants in lieu
   of compensation .........................           --           363,224           --              --           363,224
Amortization of deferred stock-based
   compensation ............................           --              --            3,684            --             3,684
Exercise of stock option for cash ..........          7,182           1,603           --              --             1,603
Net loss ...................................           --              --             --        (3,297,755)     (3,297,755)
                                               ------------    ------------   ------------    ------------    ------------

Balance at December 31, 2004 ...............     23,177,526    $  1,146,945   $       --      $(14,249,003)   $(13,102,058)
                                               ============    ============   ============    ============    ============



The  accompanying  notes are an integral  part of these  consolidated  financial
statements.


                                      C-13




                           ALPHA INNOTECH CORPORATION

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                 FOR THE YEARS ENDED DECEMBER 31, 2004 AND 2003


                                                                                 2004          2003
                                                                             -----------    -----------
                                                                                               
Cash flows from operating activities:
     Net loss ............................................................   $(3,297,755)   $(2,000,466)
     Adjustments to reconcile net income to net cash provided by operating
         activities:
              Depreciation and amortization ..............................       762,073        721,567
              Allowance for sales returns and doubtful accounts ..........         7,381       (160,000)
              Allowance for excess and obsolete inventory ................        28,397       (141,446)
              Provision for demo equipment ...............................         6,000         29,000
              Loss on disposal of property and equipment .................        (9,518)          --
              Interest on convertible notes payable ......................       387,554        171,640
              Warrants issued in lieu of compensation ....................       363,224           --
              Amortization of deferred stock-based compensation ..........         3,684         25,707
              Change in operating assets and liabilities:
                  Accounts receivables ...................................      (669,283)     1,138,657
                  Inventories ............................................       523,443        220,063
                  Prepaid expenses and other current assets ..............          (881)       (60,238)
                  Other assets ...........................................            81         (1,340)
                  Accounts payable .......................................       438,158       (373,243)
                  Accrued liabilities ....................................       188,442        175,021
                  Other liabilities ......................................       (80,258)        62,367
                  Deferred revenue .......................................        50,161       (167,990)
                                                                             -----------    -----------

                      Net cash used in operating activities ..............    (1,299,097)      (360,701)
                                                                             -----------    -----------

Cash flows from investing activities:
     Purchase of property and equipment ..................................      (356,570)      (556,051)
                                                                             -----------    -----------

         Net cash used in investing activities ...........................      (356,570)      (556,051)
                                                                             -----------    -----------

Cash flows from financing activities:
     Proceeds from borrowing of debt obligation ..........................     1,610,046        200,000
     Repayment of debt obligation ........................................      (740,504)       (80,371)
     Proceeds from issuance of convertible notes .........................       652,199           --
     Proceeds from exercise of common stock options ......................         1,603         17,605
                                                                             -----------    -----------

         Net cash provided by (used in) financing activities .............     1,523,344        137,234
                                                                             -----------    -----------

              Net decrease in cash and cash equivalents ..................      (132,323)      (779,518)

Cash and cash equivalents at the beginning of the year ...................       172,497        952,015
                                                                             -----------    -----------

     Cash and cash equivalents at the end of the year ....................   $    40,174    $   172,497
                                                                             ===========    ===========

Supplemental disclosures of cash flow information:
     Interest paid during the year .......................................   $   185,946    $    38,347
                                                                             ===========    ===========
     Income taxes paid during the year ...................................   $      --      $      --
                                                                             ===========    ===========

Supplemental disclosure of non-cash investing and financing activities:
     Accretion of preferred stock to redemption value ....................   $   704,403    $   704,403
                                                                             ===========    ===========
     Issuance of stock options for consulting services ...................   $      --      $     3,672
                                                                             ===========    ===========
     Conversion of convertible promissory notes into preferred stock .....   $ 1,978,371    $      --
                                                                             ===========    ===========
     Conversion of interest payable into preferred stock .................   $   242,657    $      --
                                                                             ===========    ===========



The  accompanying  notes are an integral  part of these  consolidated  financial
statements.


                                      C-14



                           ALPHA INNOTECH CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 FOR THE YEARS ENDED DECEMBER 31, 2004 AND 2003

1.       FORMATION AND BUSINESS OF THE COMPANY

         GENERAL - Alpha Innotech Corporation and subsidiary (the "company") was
         incorporated  and  began  operations  in June,  1992,  in the  state of
         California,  with  facilities in San Leandro,  California.  The Company
         develops and markets digital  imaging systems for image  documentation,
         quantitative analysis, and image archiving. These systems are used with
         electrophoresis samples (gel, blots, autoradiographs,  etc), microscopy
         applications,  and general imaging from insects to culture plates.  The
         Company has a wholly owned subsidiary, Alpha Innotech Limited, which is
         located in the UK and commenced sales operation in September 2001. This
         office location closed its operations in August 2003.

         The Company obtained an additional  convertible notes payable financing
         offering totaling $674,494 during March and September of 2004. However,
         the Company has incurred  substantial  losses and  negative  cash flows
         from  operations.  For the year ended  December 31,  2004,  the Company
         incurred a loss from  operations of $3,297,755  and negative cash flows
         from operations of $1,299,097 and has a working  capital  deficiency as
         of December 31, 2004.  Management  expects operating losses to continue
         for the  foreseeable  future  because of additional  costs and expenses
         related to research  and  development  activities.  Failure to generate
         sufficient  revenues,   raise  additional  capital  or  reduce  certain
         discretionary  spending  could  have a material  adverse  effect on the
         Company's ability to achieve its intended business objectives.

         GOING CONCERN - The accompanying consolidated financial statements have
         been  prepared  on  a  going  concern  basis  that   contemplates   the
         realization of assets and discharge of liabilities in the normal course
         of business. From inception,  the Company has incurred recurring losses
         from operation  totaling  approximately $14 million and has been unable
         to generate positive cash flow from operations.  These conditions raise
         substantial  doubts about the Company's  ability to continue as a going
         concern. The Company has been able to fund its operating losses to date
         primarily  through  the sale of  preferred  stock.  The  ability of the
         Company  to  manage  its  operating  expenses  to a level  that  can be
         financed by  existing  cash is  critical  to the  Company's  ability to
         continue as a going concern.  Management  plans to manage  expenses and
         obtain  additional funds through a reverse merge with a public company.
         The consolidated financial statements do not include any adjustments to
         reflect  the  possible  future  effects  on  the   recoverability   and
         classification   of  assets  or  the  amounts  and   classification  of
         liabilities that may result from the outcome of this uncertainty.

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

         BASIS  OF  PRESENTATION  -  The  accompanying   consolidated  financial
         statements have been prepared in accordance  with principles  generally
         accepted in the United States of America.

         PRINCIPLES OF  CONSOLIDATION - The  consolidated  financial  statements
         include the  financial  statements  of the Company and its wholly owned
         subsidiary  Alpha Innotech  Limited.  All significant  transactions and
         balances between the Company and its subsidiary have been eliminated in
         consolidation.

         USE OF ESTIMATES - The preparation of consolidated financial statements
         requires  management to make estimates and assumptions  that affect the
         reported   amounts  of  assets  and   liabilities  and  disclosures  of
         contingent  assets  and  liabilities  at the  date of the  consolidated
         financial statements


                                      C-15



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

         and the reported  amounts of revenues and expenses during the reporting
         period. Actual results could differ from those estimates.

         FOREIGN CURRENCIES - The United States dollar is the reporting currency
         for the Company.  The functional currency used by the subsidiary is the
         local currency.  Assets and liabilities  recorded in foreign currencies
         are translated at the exchange rate on the balance sheet date.  Revenue
         and expenses are  translated  at average  rates of exchange  prevailing
         during the year.  Translation  adjustments  resulting from this process
         are charged or credited to other comprehensive income.

         FAIR VALUE OF FINANCIAL  INSTRUMENTS  - The fair value of the Company's
         cash and cash equivalents,  accounts  receivable,  and accounts payable
         approximate  their  carrying  value due to the short maturity or market
         rate  structure of those  instruments.  The fair value of the Company's
         debt  approximates  the  carrying  value due to the  debt's  short-term
         maturity.

         CASH AND CASH EQUIVALENTS - The Company considers  investments that are
         highly  liquid,  that are readily  convertible to cash, and that mature
         within three  months from the date of purchase to be cash  equivalents.
         Cash and cash  equivalents  include  money  market  funds  and  various
         deposit accounts.

         INVENTORIES  -  Inventories  are stated at the lower of cost or market,
         cost being  determined  using the first-in,  first out ("FIFO") method.
         Reserves are established for excess or obsolete inventories.

         PROPERTY AND EQUIPMENT - Property and equipment are stated at cost less
         accumulated  depreciation  and are  depreciated  over  their  estimated
         useful lives of the related assets  principally using the straight-line
         method: 18 months for demo and loaner  equipment,  3 years for computer
         hardware  and  software,  5 to  7  years  for  furniture,  fixture  and
         equipment. Leasehold improvements are recorded at cost. Amortization is
         provided  using the  straight-line  method  over the  shorter  of their
         estimated  useful lives or the term of the lease.  Upon  retirement  or
         sale, the cost and related  accumulated  depreciation  are removed from
         the balance sheet and the resulting  gain or loss is reflected in other
         income and expense.  Maintenance  and repairs are charged to operations
         as incurred.

         INCOME TAXES - The provision for income taxes includes federal,  state,
         and foreign  taxes  currently  payable,  deferred  taxes  arising  from
         temporary  differences between income for financial  accounting and tax
         purposes, and the effects of net operating loss carryforwards. Deferred
         tax assets and liabilities are recognized for the estimated  future tax
         effects  attributable  to  temporary   differences  and  carryforwards.
         Deferred tax assets and  liabilities  shall be classified as current or
         noncurrent  based  on  the  classification  of  the  related  asset  or
         liability.  A deferred tax asset or liability that is not related to an
         asset  or  liability  shall be  classified  according  to the  expected
         reversal date of the temporary difference.  These temporary differences
         result primarily from different  accounting  methods used for financial
         accounting and tax purposes for  depreciation,  state taxes,  inventory
         costs, and employee compensation.  A valuation allowance is established
         for the  portion  of a deferred  tax asset for which it is more  likely
         than not that a tax benefit will not be realized.

         IMPAIRMENT OF LONG-LIVED  ASSETS - The Company evaluates its long-lived
         assets  for  indications  of  possible  impairment  whenever  events or
         changes in circumstances  indicate that the carrying amount of an asset
         may not be recoverable. Recoverability is measured by comparison of the


                                      C-16



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

         carrying amounts to the future net undiscounted  cash flows,  which the
         assets are  expected  to  generate.  Should an  impairment  exist,  the
         impairment would measured by the amount by which the carrying amount of
         the assets exceeds the projected  discounted  future cash flows arising
         from the  asset.  There  have been no such  impairments  of  long-lived
         assets through December 31, 2004.

         REVENUE RECOGNITION - The Company's revenue is derived from the sale of
         digital  imaging  systems,   net  of  returns  and  allowances  and  is
         recognized when a contract is executed,  all delivery  obligations have
         been met,  the fee is fixed and  determinable,  and  collectibility  is
         probable.  All products are sold with a 1-year  warranty  agreement and
         the Company records an associated reserve for estimated warranty costs.

         For products sold where software is deemed to be more than  incidental,
         the Company  follows  Statement  of Position  ("SOP")  97-2,  "Software
         Revenue   Recognition,"   as  amended.   Revenue   earned  on  software
         arrangements  involving  multiple elements is allocated to each element
         based  on  vendor-specific  objective  evidence,  which is based on the
         price charged when the same element is sold separately.  When a digital
         imaging  system  is  sold,  the  multiple  elements  are  software  and
         maintenance  and support.  Revenue  allocated to software is recognized
         when a contract is executed,  all delivery  obligations  have been met,
         the fee is fixed and determinable,  and collection is probable. Revenue
         allocated to maintenance and support is recognized as deferred  revenue
         when a contract is executed,  all delivery  obligations  have been met,
         the fee is fixed and determinable, and collection is probable. Deferred
         revenue for  maintenance  and support is  recognized  ratably  over the
         maintenance term (typically for a period of one year,  beginning when a
         digital  imaging system is considered  sold or an extended  maintenance
         and support contract is signed).

         ADVERTISING  EXPENSES  - The  Company  expenses  advertising  costs  as
         incurred. Advertising expenses for the years ended December 31,2004 and
         2003 were $77,444 and $102,695.

         RESEARCH AND DEVELOPMENT - Research and  development  costs are charged
         to operations as incurred.

         SOFTWARE DEVELOPMENT COSTS - Software development costs are included in
         research  and   development   and  are  expensed  as  incurred.   After
         technological feasibility is established, material software development
         costs are  capitalized  until the  product  is  available  for  general
         release.  The capitalized  cost is then amortized on the  straight-line
         basis  over the  estimated  product  life,  or on the ration of current
         revenues to total projected project revenues,  whichever is greater. To
         date, the period between achieving technological feasibility, which the
         Company has  defined as the  establishment  of a working  model and the
         point at which the product is ready for general  release has been short
         and software  development costs qualifying for capitalization have been
         insignificant.   Accordingly,  the  Company  has  not  capitalized  any
         software development costs.

         STOCK-BASED COMPENSATION - The Company grants stock options for a fixed
         number of shares to employees  with an exercise price equal to the fair
         value of the  shares at the date of grant.  The  Company  accounts  for
         stock option grants in accordance  with APB Opinion No. 25,  ACCOUNTING
         FOR STOCK ISSUED TO EMPLOYEES  ("APB 25") and related  Interpretations.
         Under APB 25,  because the  exercise  price of the  Company's  employee
         stock options  equals the market price of the  underlying  stock on the
         date of grant,  no employee stock options equal the market price of the
         underlying  stock on the date of  grant,  no  compensation  expense  is
         recognized. As permitted by Statement of Financial Accounting Standards
         No. 123,  ACCOUNTING FOR  STOCK-BASED  COMPENSATION  ("SFAS 123"),  the
         Company has adopted the "disclosure only" alternative described in SFAS
         No. 123 for its employee stock option plan.


                                      C-17



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

         The Company has two  stock-based  employee  compensation  plans. As all
         options have been granted with exercise prices equal to the deemed fair
         value  of the  shares  at  the  grant  date,  no  stock-based  employee
         compensation cost has been recognized under these stock-based  employee
         compensation plans.

         Had  compensation  cost  for the  Company's  stock  option  plans  been
         determined  based on the fair market value at the grant dates for stock
         options granted consistent with the provision of SFAS 123, the expense,
         net of the  related  tax  effect,  would  have been  immaterial  to the
         Company's net loss.

         The weighted  average fair value of options granted in 2004 and 2003 is
         $0.29 per share both years.

         COMPREHENSIVE  LOSS  -  The  Company  has  adopted  the  provisions  to
         Statement  of Financial  Accounting  Standards  No. 130,  COMPREHENSIVE
         INCOME  ("SFAS  No.  130").  SFAS No.  130  establishes  standards  for
         reporting and display of  comprehensive  income and its  components for
         general purpose financial statements.  For all periods presented, there
         were no differences between net loss and comprehensive loss.

         CONCENTRATION OF CREDIT RISK - Financial instruments, which potentially
         subject  the  Company  to   concentration   of  credit  risk,   consist
         principally  of trade  receivables  and holdings of cash. The Company's
         credit  risk is managed by  investing  its cash in  high-quality  money
         market  instruments.  The receivables credit risk is controlled through
         credit   approvals,   credit   limits,   monitoring   procedures,   and
         establishment of a reserve for doubtful accounts.

         RECENT ACCOUNT  PRONOUNCEMENTS - In December 2004, the FASB issued SFAS
         No. 123 (revised 2004),  SHARE-BASED PAYMENT ("SFAS 123(R)"). This is a
         revision of SFAS No. 123, ACCOUNTING FOR STOCK-BASED COMPENSATION,  and
         supercedes APB No. 25,  ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES  ("APB
         25").  As noted  in our  stock  based  compensation  accounting  policy
         described  above,  the Company  generally does not record  compensation
         expense for employee stock options. Under SFAS 123(R), the Company will
         be  required  to measure  the cost of  employee  services  received  in
         exchange  for stock  compensation,  based on the grant  date fair value
         (with limited exceptions). That cost will be recognized over the period
         during which an employee is required to provide service in exchange for
         the  award  (usually  the  vesting  period).  The fair  value for stock
         options will be estimated  using an  option-pricing  model.  Excess tax
         benefits,  as defined in SFAS 123(R), will be recognized as an addition
         to paid-in capital.  Under SFAS 123(R),  measurement and recognition of
         compensation  expense related to the Company's restricted stock will be
         the same as APB 25. The  provisions  of SFAS 123(R) are effective as of
         the  beginning  of the first  interim or annual  reporting  period that
         begins after June 15, 2005.  The Company is  currently  evaluating  the
         impact of this statement on its consolidated financial statements.

         In November 2004, FASB issued SFAS 151,  INVENTORY COST. This statement
         amends  Accounting  Research  Bulletin  No. 43,  Chapter  4,  INVENTORY
         PRICING,  to  clarify  the  accounting  for  abnormal  amounts  of idle
         facility   expense,   freight,   handling  costs  and  wasted  material
         (spoilage).  The  provision of the statement is effective for inventory
         costs incurred  during fiscal years  beginning after June 15, 2005. The
         Company is evaluating the impact of this statement on its  consolidated
         financial statements.


                                      C-18



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

         In January 2003, the FASB issued FASB Interpretation No. 46 ("FIN 46"),
         "Consolidation of Variable Interest Entities,, an Interpretation of ARB
         No.  51. FIN 46  requires  certain  variable  interest  entities  to be
         consolidated  by the  primary  beneficiary  of the entity if the equity
         investors  in  the  entity  do  not  have  the   characteristics  of  a
         controlling financial interest or do not have sufficient equity at risk
         for  the  entity  to  finance   its   activities   without   additional
         subordinated  financial support from other parties. FIN 46 is effective
         immediately for all new variable  interest entities created or acquired
         after  January 31, 2003.  For  variable  interest  entities  created or
         acquired  prior to February 1, 2003,  the  provisions of FIN 46 must be
         applied for the first interim or annual period beginning after June 15,
         2003. The Company does not have any ownership in any variable  interest
         entities  as  of  December  31,  2003.   The  Company  will  apply  the
         consolidation  requirement of FIN 46 in future periods if it should own
         any interest in a variable interest entity.

         In May 2003,  the FASB  issued SFAS No.  150,  "Accounting  for Certain
         Financial  Instruments  with  Characteristics  of both  Liabilities and
         Equity."  SFAS  No.  150  establishes   standards  for  how  an  issuer
         classifies and measures financial  instruments with  characteristics of
         both debt and equity and requires an issuer to classify  the  following
         instruments  as  liabilities  in its  balance  sheet:  (1) a  financial
         instrument issued in the form of shares that is mandatorily  redeemable
         and embodies an  unconditional  obligation  that requires the issuer to
         redeem it by  transferring  its assets at a specific or determined date
         or upon an event that is certain to occur; (2) a financial  instrument,
         other than an outstanding share, that embodies an obligation to replace
         the  issuer's  equity  shares,  or is indexed to such  obligation,  and
         requires the issuer to settle the  obligation by  transferring  assets;
         and  (3)  a  financial   instrument  that  embodies  an   unconditional
         obligation  that the issuer must settle by issuing a variable number of
         equity shares if the monetary  value of the  obligation is based solely
         or  predominantly  on (a) a fixed  monetary  amount,  (b) variations in
         something other than fair value of the issuer's  equity shares,  or (c)
         variations  inversely  related  to  changes  in the  fair  value of the
         issuer's equity shares.

         In November 2003, The FASB issued FASB Staff Position No. 150-3,  which
         deferred the effective dates of applying certain provisions of SFAS No.
         150 related to mandatorily  redeemable financial instruments of certain
         nonpublic entities and certain  mandatorily  redeemable  noncontrolling
         interests for public and nonpublic entities.

         For  public  entities,  SFAS  No.  150  is  effective  for  mandatorily
         redeemable financial instruments entered into or modified after May 31,
         2003 and is effective  for all other  financial  instruments  as of the
         first interim period beginning after June 15, 2003.

         For mandatorily redeemable noncontrolling interests that would not have
         to be classified as liabilities by a subsidiary  under the exception in
         paragraph 9 of SFAS No. 150, but would be classified as  liabilities by
         the parent, the  classification and measurement  provisions of SFAS No.
         150  are  deferred  indefinitely.   For  other  mandatorily  redeemable
         noncontrolling  interests that were issued before November 5, 2003, the
         measurement provisions of SFAS No. 150 are deferred  indefinitely.  For
         those instruments,  the measurement  guidance for redeemable shares and
         noncontrolling  interests  in other  literature  shall apply during the
         deferral period.

         The  adoption of SFAS No. 150 did not have any impact on the  Company's
         consolidated financial statements.


                                      C-19



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


3.       BALANCE SHEET COMPONENTS

                                                     December 31,   December 31,
                                                         2004           2003
                                                     -----------    -----------

         ACCOUNTS RECEIVABLE, NET
              Accounts receivable ................   $ 2,057,935    $ 1,388,652
              Less allowance for sales returns ...       (35,003)       (25,000)
              Less allowance for doubtful accounts       (47,378)       (50,000)
                                                     -----------    -----------

                  Accounts receivable, net .......   $ 1,975,554    $ 1,313,652
                                                     ===========    ===========

         INVENTORY, NET
              Raw material .......................   $   774,425    $ 1,245,315
              Finished Goods .....................        17,900           --
              Inventory in transit ...............        13,047         83,500
              Less allowance for excess and
                 obsolete inventory ..............       (80,781)       (52,384)
                                                     -----------    -----------

                  Inventory, net .................   $   724,591    $ 1,276,431
                                                     ===========    ===========


                                                December 31,   December 31,
                                                   2004           2003
                                                -----------    -----------

         PROPERTY AND EQUIPMENT
              Machinery and equipment .......   $   353,108    $   311,526
              Furniture and fixtures ........       203,265        203,265
              Leasehold improvements ........     1,507,500      1,507,500
              Loaner and demonstration units      1,109,709      1,034,091
              Computers .....................       299,733        296,543
              Software ......................        87,477         83,851
                                                -----------    -----------

                  Property and equipment ....     3,560,791      3,436,775

         Less accumulated depreciation and
              amortization ..................    (2,127,111)    (1,601,111)
                                                -----------    -----------

                  Property and equipment, net   $ 1,433,679    $ 1,835,664
                                                ===========    ===========

         In 2002,  the  Company  entered  into a  capital  lease  agreement  for
         production  equipment.  As of December 31, 2004 and 2003,  property and
         equipment  included  $4,756 and $4,756 of equipment under capital lease
         and  accumulated  amortization of assets under capital lease was $2,705
         and $1,648.

                                                December 31,    December 31,
                                                   2004            2003
                                                ----------      ----------

         ACCRUED LIABILITIES
              Payroll and related ...........   $  626,489      $  452,370
              Warranty ......................      100,717         120,182
              Audit and tax accrual .........       72,750          49,035
              Finder's fee ..................      175,000         175,000
              Interest on convertible notes .         --           142,165
              Other .........................      113,589         103,490
                                                ----------      ----------

                  Accrued liabilities .......   $1,088,545      $1,042,242
                                                ==========      ==========


                                      C-20



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


4.       DEBT

                                                    December 31,    December 31,
                                                        2004           2003
                                                    ----------      ----------
         DEBT
              BFI Business Finance line of credit   $  810,046      $     --
              BFI Business term loan ............      300,000            --
              Xtrana term loan agreement ........      500,000            --
              Comerica revolving line of credit .         --           700,000
              California Economic Development
                  Lending Initiative "CEDLI"
                  Loan Agreement, repaid in 2004          --            40,504
              Convertible promissory notes,
                  converted in 2004 .............         --         1,303,877
                                                    ----------      ----------

                  Total debt ....................   $1,610,046      $2,044,381
                                                    ==========      ==========


         BFI  BUSINESS  FINANCE LINE OF CREDIT - In  connection  with funding of
         operations  and  development  of new  products  on March 9,  2004,  the
         Company established a line of credit with BFI Business Finance ("BFI"),
         in which the Company uses its accounts  receivable  as  collateral  and
         obtains  advances  from  BFI  up  to  80%  of  the  Company's  accounts
         receivable  balance at the time of the  borrowing,  but with  principal
         advances  not to exceed $1 million.  The  interest  rate of the line of
         credit is variable,  and bears interest at a rate of 3% over prime. The
         interest  rate as of December 31, 2004 was 8.25%.  Interest  expense on
         the line of credit for the year ended  December 31, 2004 was  $106,568.
         The unused portion of the line of credit available at December 31, 2004
         was $189,954.

         BFI BUSINESS TERM LOAN - In connection  with funding of operations  and
         development of new products on August 27, 2004,  the Company  assumed a
         loan in the  amount of  $300,000  payable to the BFI  Business  Finance
         ("BFI").  The interest  rate  applicable  to the note is variable,  and
         bears  interest at a rate of 3% over  prime.  The  interest  rate as of
         December 31, 2004 was 8.25%.  The loan matured and  principal  payments
         were due to BFI on December 31, 2004.  However,  in December  2004, BFI
         and the Company  agreed to extend the note for an additional 90 days to
         March 31, 2005, for a fee of $20,000.  Interest expense on the BFI loan
         for the year ended December 31, 2004 was $64,635.

         XTRANA  TERM LOAN  AGREEMENT  - On  December  14,  2004,  Xtrana,  Inc.
         ("Xtrana") and the Company  entered into a merger  agreement,  to which
         Xtrana  will be  merged  with and into the  Company,  with the  Company
         continuing  after  the  merger  as  the  surviving  corporation  and  a
         wholly-own  subsidiary  of Xtrana.  Pursuant to the terms of the merger
         agreement,  Xtrana made a loan to the Company in the amount of $500,000
         on December 16, 2004. The  obligations  under the loan are secured by a
         second priority lien and security  interest in substantially all assets
         of the Company. The loan bears interest at the rate of 6% per annum.

         COMERICA  REVOLVING  LINE OF CREDIT - In  connection  with  funding  of
         operations  and  development  of new products on August 11,  2000,  the
         Company established a $2 million revolving line of credit with Comerica
         bank.  The line of credit limit was reduced to $1 million during fiscal
         2002.  The interest  rate of the  revolving  line is the base bank rate
         plus 0.75%.  The interest  rate as of December 31, 2003 was 5.25%.  The
         Company repaid the entire outstanding  balance and closed the revolving
         line of credit in March  2004.  Interest  expense on the line of credit
         for the years ended December 31, 2004 and 2003 was $9,065 and $29,326.


                                      C-21



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


4.       DEBT (CONTINUED)

         CEDLI LOAN  AGREEMENT - In connection  with funding of  operations  and
         development of new products on June 28,1999, the Company assumed a loan
         in the  amount of  $400,000  payable to the CEDLI.  The  interest  rate
         applicable to the note is variable,  and bears interest at a rate of 2%
         over prime.  The interest rate as of December 31, 2003 was 6%. Payments
         are made in monthly  installments of $6,667 each until August 2004. The
         Company  repaid  the  entire  outstanding  balance of the loan in March
         2004.  Interest  expense on the CEDLI loan for the years ended December
         31, 2004 and 2003 was $650 and $ 5,298.

         CONVERTIBLE  NOTES - In August and December of 2002, the Company issued
         $1,303,815 in convertible promissory notes. These notes are convertible
         into Series A preferred  stock. The notes bear interest of 8% per annum
         till March of 2004, and were adjusted to 6% thereafter. On December 13,
         2004, the convertible  promissory  notes were converted into Series A-1
         preferred stock. The outstanding  principal amount and interest accrued
         on the notes  totaled  $1,516,946 at the date of  conversion.  Interest
         expense on the convertible  notes for the years ended December 31, 2004
         and 2003 was $70,931 and $110,821.

         In March  and  September  of  2004,  the  Company  issued  $674,494  in
         convertible promissory notes. These notes are convertible into Series A
         preferred  stock.  The notes  issued in March bear  interest  of 6% per
         annum.  In addition,  common stock  warrants  were issued in connection
         with the convertible  notes (see Note 8, Common Stock). On December 13,
         2004, the 2004 convertible  promissory notes were converted into Series
         A-1 preferred  stock.  The  outstanding  principal  amount and interest
         accrued  on the  notes  totaled  $686,082  at the  date of  conversion.
         Interest  expense on the convertible  notes for the year ended December
         31, 2004 was $11,587.

5.       COMMITMENTS AND CONTINGENCIES

         The Company rents its office facilities under an operating lease, which
         expires on December 2011.  Under the terms of the lease, the Company is
         responsible for taxes, insurance and maintenance expenses. Rent expense
         for the  years  ended  December  31,  2004 and 2003  was  $444,788  and
         $414,068.

         At December 31, 2004,  total future minimum facility lease payments are
         as follows:

         Year ending December 31:                     
              2005                                    $   440,766
              2006                                        449,766
              2007                                        458,955
              2008                                        468,338
              2009                                        477,918
              Thereafter                                  945,218
                                                      ------------

                  Total minimum lease obligations:    $ 3,240,960
                                                      ============

         Under the terms of the 2001 facility  lease  agreement,  the Company is
         obligated  to provide  the lessor  with a security  deposit of $66,500,
         which is included in other assets.


                                      C-22



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


6.       INCOME TAXES

         No provision or benefit for income  taxes has been  recognized  for the
         years ended  December 31, 2004 and 2003 as the Company has incurred net
         operating  losses  for income tax  purposes  and had no loss  carryback
         potential.

         The tax effects of temporary  differences that give rise to significant
         portions of the deferred tax assets and deferred tax liabilities are as
         follows:

                                                 December 31,     December 31,
                                                     2004             2003
                                                 -----------       -----------

         DEFERRED TAXES
              Net operating loss carryforwards   $ 3,234,662       $ 2,121,197
              Research and development credits       539,121           409,121
              Reserves and accruals ..........       759,546           732,759
                                                 -----------       -----------

                  Total ......................     4,533,329         3,263,077
              Less valuation allowance .......    (4,533,329)       (3,263,077)
                                                 -----------       -----------

                  Deferred taxes .............   $      --         $      --
                                                 ===========       ===========

         The net change in the valuation  allowance for the years ended December
         31, 2004 and 2003 was $1,270,252 and $637,805. Management believes that
         sufficient  uncertainty  exists  regarding  the future  realization  of
         deferred tax assets,  and,  accordingly a full  valuation  allowance is
         required.

         The difference  between the expected  provision for income taxes (based
         on the U.S. federal  statutory tax rate of 34%) to the Company's actual
         income tax provison  (effective tax rate of 0%) primarily  relates to a
         full valuation allowance.
         At December 31, 2004,  the Company had federal and state net  operating
         loss  carryforwards  of  approximately  $8,400,000 and $6,300,000.  The
         federal  and state net  operating  loss  carryforwards  will  expire in
         various periods through 2024.

         At December  31, 2003,  the Company had federal and state  research and
         development tax credits of approximately $300,000. The federal research
         credits  expire in  various  periods  through  2024 and the  California
         research credits can be carried forward indefinitely.

         Utilization  of net  operating  loss  carryforwards  may be  subject to
         substantial  annual limitation due to the ownership change  limitations
         provided  by the  Internal  Revenue  Code of  1986  and  similar  state
         provisions.  The annual  limitation may result in the expiration of net
         operating losses and tax credits before utilization.


                                      C-23



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

7.       REDEEMABLE CONVERTIBLE PREFERRED STOCK

         The following  table  summarizes the Company's  redeemable  convertible
         preferred stock:



                                                                   December 31,  December 31,
                                    December 31, 2004                  2004          2003
                         ---------------------------------------   -----------   -----------
                                         Issued
                                           and       Liquidation   Redemption    Redemption
                          Authorized   Outstanding     Amount         Value         Value
                         -----------   -----------   -----------   -----------   -----------
                                                                          
Series A preferred
shares
("Preferred Stock") ..    14,000,000    10,533,334   $ 7,900,001   $10,273,256   $ 9,568,853

Series A-1 preferred
shares
("Preferred Stock") ..    10,000,000     7,343,418     2,203,027     2,180,733          --
                         -----------   -----------   -----------   -----------   -----------

    Total redeemable
       preferred stock    24,000,000    17,876,752   $10,103,028   $12,453,989   $ 9,568,853
                         ===========   ===========   ===========   ===========   ===========



         The  rights,  preferences,  privileges  and  restrictions  thereof  are
         summarized as follows:

         VOTING - Each share of  Preferred  Stock has voting  rights equal to an
         equivalent   number  of  shares  of  common  stock  into  which  it  is
         convertible and votes together as one class with the common stock.

         As long as at least  3,000,000  shares of convertible  Preferred  Stock
         remain outstanding, the Company must obtain approval from a majority of
         holders of convertible Preferred Stock in order to alter the Article of
         Incorporation  as related to convertible  Preferred  Stock,  change the
         authorized number of shares of convertible Preferred Stock,  repurchase
         any shares of common  stock other than  shares  subject to the right of
         repurchase by the Company,  change the authorized  number of Directors,
         authorize  a dividend  for any class or series  other than  convertible
         Preferred Stock.

         The holders of Preferred  Stock,  voting as a separate class,  shall be
         entitled to elect two members to the Board of Directors.  Likewise, the
         holders of common  stock  shall be entitled to elect two members to the
         Board of  Directors.  The  remaining  members of the Board of Directors
         shall be elected by the holders of preferred and common stock voting as
         a single class.

         REDEMPTIONS  - The Preferred  Stock Series A may be redeemed  beginning
         May 11, 2005. The Preferred Stock Series A-1 may be redeemed  beginning
         December  13,  2008.  The Company  will redeem a third the  outstanding
         shares upon written  request of the holders.  An  additional  third are
         redeemable on each of the subsequent anniversaries.

         Since the  redemption  is not within the  control of the  Company,  the
         company is accreting  Preferred Stock to its expected redemption value.
         During the years ended December 31, 2004 and 2003, the Company recorded
         accretion of $704,403 and $704,403 to increase the Preferred Stock from
         the carrying amount to its expected redemption value.

         DIVIDENDS  - Holders of  Preferred  Stock,  are  entitled  to receive a
         cumulative dividend at the annual rate of 8% per share. The Company has
         accrued for  dividends as the  dividends are payable upon a redemption.
         Such  dividends  are payable in  preference to any dividends for common
         stock  declared by the Board of Directors.  The Company has declared no
         dividend to date.


                                      C-24



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


7.       REDEEMABLE CONVERTIBLE PREFERRED STOCK (CONTINUED)

         LIQUIDATION - In the event of  liquidation,  holders of Preferred Stock
         are entitled to a per share  distribution  in preference to the holders
         of common stock.  This per share  distribution is equal to the original
         issue  price of $0.75 per share of Series A preferred  stock,  plus any
         accrued unpaid  dividends,  and $0.30 per share of Series A-1 preferred
         stock,  plus any  accrued  unpaid  dividends.  In the  event  funds are
         insufficient  to  make  a  complete  distribution  to  the  holders  of
         Preferred  Stock as  described  above,  the assets will be  distributed
         ratably  among the  holders of each  series in  proportion  to the full
         amounts to which they would otherwise be respectively entitled.

         After payment of the full liquidation  preferred of Preferred Stock, as
         set forth above,  the  remaining  assets of the Company  available  for
         distribution,  if any, shall be  distributed  ratably to the holders of
         the common  stock and the  Preferred  Stock as described in the section
         "Conversion," below.

         A  merger,  consolidation  or sale of all or  substantially  all of the
         assets  of the  Company  in  which  the  stockholders  of  the  Company
         immediately  prior  to the  transaction  possess  less  than 50% of the
         voting power of the surviving entity (or its parent)  immediately after
         the transaction  shall be deemed a liquidation,  dissolution or winding
         up of the Company.

         CONVERSION - Shares of Series A and A-1 preferred stock are convertible
         into one share of common stock at the option of the holder,  subject to
         adjustments. The adjusted conversion rate at December 31, 2004 for each
         series of preferred stock is as follows:

         o        Series A current  conversion  rate  after  adjustment  is 1 to
                  1.103, and all outstanding  shares of Series A preferred stock
                  are  convertible  into an  aggregate of  11,618,267  shares of
                  common stock.

         o        Series A-1 current conversion rate after adjustment is 1 to 1,
                  and all  outstanding  shares of Series A-1 preferred stock are
                  convertible  into an aggregate  of 7,343,418  shares of common
                  stock.

         Such  conversion  is  automatic  upon  the  effective  date of a public
         offering of common stock for which the aggregate  proceeds are at least
         $25 million, with a public offering price per share not less than $3.75
         per  share  or upon the vote of at  least  66-2/3%  of the  outstanding
         shares of Preferred Stock. A total of 24,000,000 shares of common stock
         have been reserved for issuance upon the conversion of Preferred Stock.

         SERIES A PREFERRED  STOCK WARRANTS - In 2001, in  conjunction  with the
         Comerica  line of credit  agreement,  the  Company  issued a warrant to
         Comerica to purchase  25,000 shares of Series A preferred stock with an
         exercise price of $1.96 per share.  The warrant  remains exercisable at
         December 31, 2004 and will expire on October 2006.

         In 2000, in conjunction with the Comerica line of credit agreement, the
         Company  issued a warrant to  Comerica  to  purchase  71,429  shares of
         Series A preferred stock with an exercise price of $1.96 per share. The
         warrants  remain  exercisable  and outstanding at December 31, 2004 and
         expire on August 2005.


                                      C-25



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


7.       REDEEMABLE CONVERTIBLE PREFERRED STOCK (CONTINUED)

         During 2000,  the Company  issued  warrants to purchase an aggregate of
         333,334  shares of Series A preferred  stock with an exercise  price of
         $0.75 per share as additional  consideration  for the convertible notes
         payable.  The warrants remain exercisable at December 31, 2003 and will
         expire in October of 2006.

         The following table summarizes  information  concerning outstanding and
         exercisable Series A preferred stock warrants as of December 31, 2004:



                                                               Warrants Exercisable at
               Warrants Outstanding at December 31, 2004         December 31, 2004
             ---------------------------------------------   --------------------------
                                 Weighted
                                 Average         Weighted                     Weighted
Range of                        Remaining        Average                      Average
Exercise         Number        Contractual       Exercise        Number       Exercise
  Price       Outstanding     Life (in Years)     Price       Outstanding      Price
----------   -------------    --------------    ----------   -------------   ----------

                                                                    
 $ 0.75          333,334            1.75        $ 0.75           333,334        $ 0.75
   1.96           96,429            0.08          1.96            96,429          1.96
             -------------                                   ------------

                  429,763                                        429,763
             =============                                   ============



8.       COMMON STOCK

         At December  31, 2004 and 2003,  the  Company had  reserved  sufficient
         shares of common stock for issuance upon  conversion of preferred stock
         and  exercise of stock  options.  Common  stockholders  are entitled to
         dividends as and when declared by the Board of Directors subject to the
         prior rights of the preferred  stockholders.  The holders of each share
         of common stock are entitled to on vote.

         WARRANTS FOR COMMON STOCK - During 2004, the Company issued warrants to
         the  holders  of  its  convertible  promissory  notes  to  purchase  an
         aggregate of 1,000,000 shares of common stock with an exercise price of
         $0.01 per  share as  additional  consideration  to the  holders  of the
         convertible promissory notes. Using the Black-Scholes pricing model and
         the following  assumption:  estimated  volatility of 70%, a contractual
         life of five years, a zero dividend rate,  3.83%-4.13%  rate of return,
         and fair value of the  common  stock of $0.30 per  share,  the  Company
         determined the allocated fair value of the warrants was $240,000 at the
         date  of  grant.  The  warrants  were  recorded  as a  discount  to the
         convertible   promissory  notes.  The  Company  accreted  the  $240,000
         discount to interest  expense for the year ended  December 31, 2004 due
         to the conversion of the convertible  promissory  notes into Series A-1
         preferred stock in 2004.

         During 2004, the Company issued warrants to its officers to purchase an
         aggregate of 1,695,057 shares of common stock with an exercise price of
         $0.01 per share in  connection  with the  officers'  forfeiture of cash
         payments for salaries.  Using the  Black-Scholes  pricing model and the
         following  assumption:  estimated volatility of 70%, a contractual life
         of five years,  a zero dividend  rate,  4.13% rate of return,  and fair
         value of the common  stock of $0.30 per share,  the Company  determined
         the  allocated  fair value of the  warrants was $363,224 at the date of
         grant.  This amount has been  recorded  as salary  expense for the year
         ended  December 31, 2004. The warrants  remain  exercisable at December
         31, 2004 and will expire in December 2009.


                                      C-26



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


8.       COMMON STOCK (CONTINUED)

         During March and  September  of 2004,  the Company  issued  warrants to
         purchase an aggregate of 269,797 shares of common stock at the price of
         $0.01  per share as  additional  consideration  for the  notes  payable
         financing (see Note 4, debt). Using the Black-Scholes pricing model and
         the following  assumption:  estimated  volatility of 70%, a contractual
         life of five years, a zero dividend rate,  3.83%-4.13%  rate of return,
         and fair value of the  common  stock of $0.30 per  share,  the  Company
         determined  the allocated fair value of the warrants was $65,036 at the
         date of grant.  The  warrants  were  recorded  as a  discount  to notes
         payable.  The  Company  accreted  $65,036 of the  discount  to interest
         expense for the year ended  December  31, 2004.  The warrants  remained
         exercisable at December 31, 2004 and will expire in March 2009.

         During  August and  December of 2002,  the Company  issued  warrants to
         purchase an aggregate of 869,253 shares of common stock at the price of
         $0.01  per share as  additional  consideration  for the  notes  payable
         financing (see Note 4, debt). Using the Black-Scholes pricing model and
         the following  assumption:  estimated  volatility of 70%, a contractual
         life of five years, a zero dividend rate,  2.93%-3.25%  rate of return,
         and fair value of the  common  stock of $0.30 per  share,  the  Company
         determined the allocated fair value of the warrants was $212,280 at the
         date of grant.  The  warrants  were  recorded  as a  discount  to notes
         payable.  The  Company  accreted  $0 and  $171,577  of the  discount to
         interest  expense for the years ended  December 31, 2004 and 2003.  The
         warrants  remained  exercisable at December 31, 2004 and will expire in
         August and December of 2007.

         The following table summarizes  information  concerning outstanding and
         exercisable common stock warrants as of December 31, 2004:



                                                               Warrants Exercisable at
               Warrants Outstanding at December 31, 2004         December 31, 2004
             ---------------------------------------------   --------------------------
                                 Weighted
                                 Average         Weighted                     Weighted
Range of                        Remaining        Average                      Average
Exercise         Number        Contractual       Exercise        Number       Exercise
  Price       Outstanding     Life (in Years)     Price       Outstanding      Price
----------   -------------    --------------    ----------   -------------   ----------

                                                                   
 $ 0.01         3,834,107           4.39          $ 0.01        3,834,107      $ 0.01
             =============                                   =============


         STOCK  OPTION PLAN - In 1999,  the Company  adopted the 1999 Stock Plan
         (the "Plan"). Under the Plan, the Company may issue options to purchase
         common stock to employees,  directors and consultants.  Options granted
         under the Plan may be incentive  stock options or  non-qualified  stock
         options.  Stock  purchase  rights may also be  granted  under the Plan.
         Incentive  stock  options  ("ISO")  may  be  granted  only  to  Company
         employees,  which  includes  officers  and  directors  of the  Company.
         Non-qualified  stock options  ("NSO") and stock purchase  rights may be
         granted to employees  and  consultants.  The Board of Directors has the
         authority to  determine to whom options will be granted,  the number of
         options,  and the  terms  and the  exercise  price.  Options  are to be
         granted at an exercise price not less than fair market value for an ISO
         or 85% of fair value for an NSO. For  individual  holding more than 10%
         of the voting  rights of all classes  stock,  the exercise  price of an
         option will not be less than 110% of fair market value.  Options become
         exercisable  at least  20% per year over  five  years  from the date of
         grant.


                                      C-27





                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


8.       COMMON STOCK (CONTINUED)

         The following tables summarize information  concerning  outstanding and
         exercisable stock options as of December 31, 2004:



                                                                              Weighted -
                                   Shares                                      Average
                                  Available       Options       Exercise      Aggregate
                                  For Grant     Outstanding    Price Share      Price
                                 -----------    -----------    -----------   -----------
                                                                         
Balance, December 31, 2002 ...     2,173,400      2,567,975    $      0.29   $   752,780
Granted ......................    (1,392,000)     1,392,000           0.30       417,600
Exercised ....................          --          (61,719)          0.28       (17,431)
Cancelled ....................        68,339        (68,339)          0.28       (18,823)
Expired ......................        14,991        (14,991)          0.26        (3,907)
                                 -----------    -----------    -----------   -----------

    Balance, December 31, 2003       864,730      3,814,926           --       1,130,219

Exercised ....................          --           (7,182)          0.22        (1,580)
Cancelled ....................       121,435       (121,435)          0.30       (36,430)
Expired ......................        83,517        (83,517)          0.29       (24,220)
                                 -----------    -----------    -----------   -----------

    Balance, December 31, 2004     1,069,682      3,602,792           --     $ 1,067,989
                                 ===========    ===========    ===========   ===========




                                                               Options Exercisable at
               Options Outstanding at December 31, 2004          December 31, 2004
             ---------------------------------------------   --------------------------
                                 Weighted
                                 Average         Weighted                     Weighted
Range of                        Remaining        Average                      Average
Exercise         Number        Contractual       Exercise        Number       Exercise
  Price       Outstanding     Life (in Years)     Price       Outstanding      Price
----------   -------------    --------------    ----------   -------------   ----------

                                                                   
  $ 0.16          312,300           5.51          $ 0.16          311,101      $ 0.16
    0.30        2,240,492           7.88            0.30        1,152,305        0.30
    0.33        1,050,000           6.41            0.33          735,000        0.33
             -------------                                   -------------

                3,602,792                                       2,198,406
             =============                                   =============


         During 2004 and 2003,  the Company  granted none and 15,000  options to
         purchase  common stock to outside  consultants  for services  rendered.
         These stock options were granted at an exercise price equal to the then
         estimated  fair value of the common stock,  for which expense of $0 and
         $3,672 was recorded as deferred  stock-based  compensation  during 2004
         and 2003 and is being amortized to general and  administrative  expense
         over the vesting period. $3,684 and $25,707 was recognized and recorded
         to general and administrative expense in 2004 and 2003.


                                      C-28



                           ALPHA INNOTECH CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


8.       COMMON STOCK (CONTINUED)

         For these options, the Company calculated the fair value of each option
         on the date of grant using the  Black-Scholes  option  pricing model as
         prescribed in SFAS No. 123 using the following assumptions:

                                                             December 31, 2003
                                                             ------------------

         Risk-free interest rate ......................            4.05%
         Expected life (in years) .....................             10
         Dividend yield ...............................             --
         Expected volatility ..........................             70%

9.       EMPLOYEE BENEFIT PLAN

         The Company offers the Alpha  Innotech  Corporation  401(k)  Retirement
         Plan ("401(k) Plan"), a qualified  voluntary  contributory saving plan,
         available  to  substantially  all  the  Company's  employees.  Eligible
         employees may contribute up to 15% of their pretax annual compensation,
         up to the amount allowed pursuant to the Internal Revenue Code. In 2004
         and 2003,  the Company did not match its employees' contributions.  The
         Company's cost of the 401(k) Plan for the years ended December 31, 2004
         and 2003 was $0 and $0.

10.      XTRANA MERGER

         On December 14, 2004, Xtrana, Inc., a Delaware corporation  ("Xtrana"),
         AIC Merger  Corporation,  a California  corporation  and a wholly-owned
         subsidiary of Xtrana  ("Xtrana  Sub"),  and the Company entered into an
         Agreement  and Plan of  Merger  pursuant  to which  Xtrana  Sub will be
         merged with and into the Company, with the Company continuing after the
         Merger as the surviving  corporation  and a wholly-owned  subsidiary of
         Xtrana. This plan of merger has yet to be completed.

11.      PRIOR PERIOD ADJUSTMENT

         Revenue allocated to maintenance and support is deferred and recognized
         ratably over the maintenance  term (typically one year). In 2005, while
         reviewing the deferred  revenue  schedule for  maintenance and support,
         the Company  determined  that there was a formula error in the schedule
         that  resulted  in deferred  revenue as recorded in the general  ledger
         being understated at December 31, 2000 by $638,480.  This error did not
         have an effect on  revenue  as  previously  recognized  for any  period
         subsequent  to December 31,  2000.  The Company has made a prior period
         adjustment due to this error. The effect of the prior period adjustment
         was to increase the amount previously  recorded for deferred revenue by
         $638,480 and increase the amount  previously  recorded for  accumulated
         deficit by $638,480.


                                      C-29



                                                                      APPENDIX D

                    AMENDMENT TO CERTIFICATE OF INCORPORATION


                            CERTIFICATE OF AMENDMENT
                                       OF
                AMENDED AND RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                                  XTRANA, INC.

         The undersigned, Michael D. Bick, Chairman of the Board of Directors of
Xtrana, Inc. (the "Corporation"), a corporation organized and existing by virtue
of the General Corporation Law (the "GCL") of the State of Delaware, does hereby
certify pursuant to Section 103 of the GCL as to the following:

         1.       The name of the  Corporation  is  Xtrana,  Inc.  The  original
Certificate of Incorporation  was filed with the Secretary of State of the State
of Delaware on January 7, 1987.

         2.       The terms and provisions of this  Certificate of Amendment (i)
have been approved by the Board of Directors of the  Corporation in a resolution
setting forth and declaring  advisable the amendment  contained  herein and (ii)
have been duly approved by the required number of shares of outstanding stock of
the Corporation,  in each case pursuant to and in accordance with Section 242 of
the General Corporation Law of the State of Delaware.

         3.       Article  IV  of  the   Corporation's   Amended  and   Restated
Certificate of Incorporation is hereby amended and restated as follows:
 
         "The  total  number  of  shares  of  stock  which  the  Corporation  is
         authorized to issue is Fifty Million  (50,000,000),  all of which shall
         be Common Stock,  par value $0.01 per shares.  Simultaneously  with the
         effective  date of the  filing of this  amendment  to the  Amended  and
         Restated  Certificate of  Incorporation  (the "Effective  Date"),  each
         share of Common Stock of the Corporation issued and outstanding or held
         as treasury  shares  immediately  prior to the Effective Date (the "Old
         Common Stock") shall  automatically  be reclassified and continued (the
         "Reverse Split"), without any action on the part of the holder thereof,
         as one-tenth on one share (0.1) of Common Stock. The Corporation  shall
         not issue fractional shares on account of the Reverse Split. Holders of
         Old Common  Stock who would  otherwise  be  entitled to a fraction of a
         share on account of the Reverse Split shall receive,  upon surrender of
         the stock certificates  formerly  representing shares of the Old Common
         Stock,  in lieu of such  fractional  share,  one whole  share of Common
         Stock.

         The Corporation's  authorized shares of Common Stock, each having a par
         value of $0.01 per  share,  shall  not be  changed.  The  Corporation's
         stated capital shall be reduced by an amount equal to the aggregate par
         value of the shares of Common Stock  issued prior to the  effectiveness
         of this  Certificate  of  Amendment  which,  as a result of the Reverse
         Split  provided  for  herein,  are no  longer  issued  shares of Common
         Stock."

         IN WITNESS  WHEREOF,  the undersigned has executed this  Certificate of
Amendment of Amended and Restated  Certificate of Incorporation as of the __ day
of ______________, 2005.



                                          __________________________________
                                          Michel D. Bick, PhD
                                          Chairman of the Board of Directors


                                      D-1



                                  XTRANA, INC.
                    PROXY FOR ANNUAL MEETING OF STOCKHOLDERS

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The undersigned,  a stockholder of XTRANA, INC., a Delaware corporation
(the  "Company"),  hereby  nominates,  constitutes and appoints Michael D. Bick,
Ph.D.  and  James  H.  Chamberlain,  or  either  one of  them,  as  proxy of the
undersigned,  each with full power of substitution,  to attend, vote and act for
the undersigned at the Annual Meeting of Stockholders of the Company, to be held
on  October 3, 2005,  and any  postponements  or  adjournments  thereof,  and in
connection  therewith,  to vote and  represent  all of the shares of the Company
which the  undersigned  would be entitled to vote with the same effect as if the
undersigned were present, as follows:

A VOTE FOR ALL PROPOSALS IS RECOMMENDED BY THE BOARD OF DIRECTORS:

Proposal 1. To elect the Board of Directors' six nominees as directors:

Michael D. Bick, Ph.D.           Douglas L. Ayer          John C. Gerdes, Ph.D.
 James H. Chamberlain         James B. Mahony, Ph.D.        N. Price Paschall

         |_|      FOR  ALL  NOMINEES  LISTED  ABOVE  (except  as  marked  to the
                  contrary below)

         |_|      WITHHELD for all nominees listed above

         (INSTRUCTION: To withhold authority to vote for any individual nominee,
         write that nominee's name in the space below:)

         -----------------------------------------------------------------------

         The undersigned  hereby  confer(s) upon the proxies,  and each of them,
         discretionary  authority  with  respect to the election of directors in
         the event  that any of the above  nominees  is unable or  unwilling  to
         serve.

Proposal 2.  To  adopt the Agreement and  Plan of  Merger,  dated as of December
             14,  2004,  as  amended,  by and among  Xtrana,  Inc.,  AIC  Merger
             Corporation,  a direct wholly-owned  subsidiary of Xtrana, Inc. and
             Alpha   Innotech   Corporation,   pursuant   to  which  AIC  Merger
             Corporation   will  be  merged   with  and  into   Alpha   Innotech
             Corporation,  with  Alpha  Innotech  Corporation  as the  surviving
             corporation in the merger.

             |_| FOR                   |_| AGAINST                |_| ABSTAIN

Proposal 3.  To  amend  our  Certificate  of  Incorporation  to effect a reverse
             stock  split   pursuant  to  which  ten  shares  of  the  Company's
             outstanding  common  stock will be  exchanged  for one new share of
             common stock  immediately prior to the consummation of the proposed
             merger.

             |_| FOR                   |_| AGAINST                |_| ABSTAIN

Proposal 4.  To amend our Certificate of Incorporation to change the name of our
             corporation   to  Alpha  Innotech   Corp. following  a   successful
             completion of the proposed merger.

             |_| FOR                   |_| AGAINST                |_| ABSTAIN

Proposal 5.  To  approve a  proposal to  grant our management the  discretionary
             authority to adjourn the Annual Meeting to a later date in order to
             enable our management and Board of Directors to continue to solicit
             additional proxies in favor of proposals 2, 3 and 4 above.

             |_| FOR                   |_| AGAINST                |_| ABSTAIN





     The  undersigned  hereby  revokes  any  other  proxy to vote at the  Annual
Meeting,  and hereby  ratifies and confirms all that said attorneys and proxies,
and each of them, may lawfully do by virtue hereof.  With respect to matters not
known at the time of the  solicitation  hereof,  said proxies are  authorized to
vote in accordance with their best judgment.

     THIS  PROXY WILL BE VOTED IN  ACCORDANCE  WITH THE  INSTRUCTIONS  SET FORTH
ABOVE OR, TO THE EXTENT NO CONTRARY DIRECTION IS INDICATED, WILL BE TREATED AS A
GRANT OF AUTHORITY TO VOTE FOR ALL PROPOSALS. 

         The undersigned  acknowledges receipt of a copy of the Notice of Annual
Meeting and accompanying Proxy Statement dated August __, 2005,  relating to the
Annual Meeting.

                                      Dated:___________________________, 2005

                                      Signature:_____________________________

                                      Signature:_____________________________
                                      Signature(s) of Stockholder(s)
                                      (See Instructions Below)
                                      The  Signature(s) hereon should correspond
                                      exactly   with   the   name(s)    of   the
                                      Stockholder(s)  appearing  on  the   Share
                                      Certificate. If stock is held jointly, all
                                      joint owners should  sign. When signing as
                                      attorney, executor, administrator, trustee
                                      or  guardian,  please  give full  title as
                                      such. If signer is a  corporation,  please
                                      sign the full  corporation  name, and give
                                      title of signing officer.

           |_| Please indicate by checking this box if you anticipate
                          attending the Annual Meeting.

                PLEASE MARK, SIGN, DATE AND RETURN THE PROXY CARD
                      PROMPTLY USING THE ENCLOSED ENVELOPE