ARTICLES OF MERGER

                                       OF

                           INVESTRA ENTERPRISES, INC.

                             (A FLORIDA CORPORATION)

                                      INTO

                          PATHOBIOTEK DIAGNOSTIC, INC.

                              (A TEXAS CORPORATION)

     The Undersigned,  being President of Investra Enterprises,  Inc., a Florida
corporation,  and  the  President  of  Pathobiotek  Diagnostics,  Inc.  a  Texas
corporation, hereby certify as follows:

     1. A merger  has been  approved  by the  boards of  directors  of  Investra
Enterprises,  Inc. a Florida corporation,  and Pathobiotek  Diagnostics,  Inc. a
Texas corporation.

     2. No vote of  Shareholders  is necessary  because 100% of the  outstanding
shares of Investra Enterprises,  Inc. are owned by Pathobiotek Diagnostics, Inc.
and

          a) The corporation, Pathobiotek Diagnostics, Inc. is the sole survivor
     and the name of the corporation will be Pathobiotek Diagnostics, Inc.

          b) The  Articles of  Incorporation  will not differ  from  Articles of
     Incorporation prior to merger

          c) Each  shareholder of the corporation  whose shares were outstanding
     immediately  before the  effective  date of the  merger  will hold the same
     number of shares, with identical designations, preferences, limitations and
     relative rights immediately after the effective date of the merger.

          d) The voting  power of the number of shares  outstanding  immediately
     after the merger will not be changed from that existing prior to the merger
     since no shares are being issued as a result of the merger.

          e) the number of participating  shares  outstanding  immediately after
     the merger is the same as  immediately  before the merger and there will be
     no change in shares.

          f) The Board of Directors of each corporation has adopted a resolution
     approving the Plan of Merger, which is attached hereto as Exhibit A.

     3) The merger shall be effective on March 6, 2000 or as soon  thereafter as
the Articles of Merger are filed with the Secretary of State of Texas.

Investra Enterprises, Inc.                   Pathobiotek Diagnostics, Inc.

by:/s/Scott Deitler                          by:/s/Paul Enright


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State of Colorado                 )
                                  ) ss.
County of Jefferson               )

         ON THIS 6TH day of March , 2000, before me, a Notary Public, personally
appeared Jim Toot, Vice President  Investra  Enterprises,  Inc., and executed on
this date the  foregoing  instrument  for the  purposes  therein  contained,  by
signing on behalf of the above named corporations as a duly authorized officer.

        IN WITNESS WHEREOF, I have hereunto set my hand and official seal.

                                            ------------------------------
                                            Notary Public/s/David K. Bailey

                                            Residing at: Louisville, CO


My Commission Expires:

8/18/2002


State of Colorado          )
                           ) ss.
County of Jefferson        )

         ON THIS 6TH day of March 2000  before me, a Notary  Public,  personally
appeared Paul Enright as Attorney in Fact for Pathobiotek  Diagnostics,  Inc. by
Power of Attorney,  and executed on this date the foregoing  instrument  for the
purposes therein contained, by signing on behalf of the above named corporations
as a duly authorized officer.

INWITNESS WHEREOF, I have hereunto set my hand and official seal.

                                            ------------------------------
                                            Notary Public /s/David K. Bailey

                                            Residing at: Louisville, CO


My Commission Expires:

8/18/2002