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                                                                   Exhibit 10.35

                         REGISTRATION RIGHTS AGREEMENT

     THIS AGREEMENT is entered into as of November 19, 1999, by and between
BIOLYNX.COM, INC., a Texas corporation (the "Company"), and SABINAL TRUST (the
"Holder").

     WHEREAS, on even date herewith the Company executed and delivered to the
Holder that certain Letter Agreement (the "Letter Agreement") whereby the
Company has agreed to issue to the Holder up to 200,000 shares of the Company's
common stock, par value $0.001 per share (the "Common Stock"), upon the
performance by the Holder as described in the Letter Agreement;

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
contained herein, and other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, the parties hereto agree as
follows:

1.  Registration Rights Available. Pursuant to the terms and conditions
contained herein, and in the Letter Agreement, the Company agrees to provide the
Holder or any permitted assignee of the Holder (collectively, the "Holder") with
the right to "piggyback" (the "Registration Rights") on a firm commitment
underwritten offering with respect to the Common Stock and any other securities
issued or issuable at any time or from time to time in respect of the Common
Stock as a result of a merger, consolidation, reorganization, stock split, stock
dividend, recapitalization or other similar event involving the Company
(collectively, the "Registrable Securities").

2.   Registration Rights. With respect to the Registration Rights, the parties
agree as follows:

     (a) Subject to Paragraph 2(b), the Company will (i) promptly give to the
Holder written notice of any registration relating to an Underwritten Public
Offering, and (ii) include in such registration (and related qualification under
blue sky laws or other compliance) such of the Holder's Registrable Securities
as are specified in the Holder's written request or requests, mailed in
accordance with the terms of this Agreement within 30 days after the date of
such written notice from the Company.

     (b) The right of the Holder to registration pursuant to the Registration
Rights shall be conditioned upon the Holder's participation in such
underwriting, and the inclusion of the Registrable Securities in the
underwriting shall be limited to the extent provided herein. The Holder shall
(together with the Company) enter into an underwriting agreement in customary
form with the managing underwriter selected for the Underwritten Public Offering
by the Company. Notwithstanding any other provision of this Agreement, if the
managing underwriter determines that marketing factors require a limitation of
the number of the Registrable Securities to be underwritten, the managing
underwriter may limit some or all of the Registrable Securities that may be
included in the registration and the Underwritten Public Offering as follows:
the number of the Registrable Securities that may be included in the
registration and the Underwritten Public Offering by the Holder shall be
determined by multiplying the number of the shares of the Registrable Securities
of all selling shareholders of the Company which the managing underwriter is
willing to include in such registration and the Underwritten Public Offering
times a fraction, the numerator of which is the number of the Registrable
Securities requested to be included in such registration and the Underwritten
Public Offering by the Holder, and the denominator of which is the total number
of the Registrable Securities which all selling shareholders of the Company have
requested to be included in such registration and the Underwritten Public
Offering. To facilitate the allocation of shares in accordance with the above
provisions, the Company may round the number of shares allocable to any such
person to the nearest 100 shares. If the Holder disapproves of the terms of any
such underwriting, it may elect to withdraw therefrom by written notice to the
Company and the managing underwriter, delivered not less than seven days before
the effective date of the Underwritten Public Offering. Any of the Registrable
Securities excluded or withdrawn from the Underwritten Public Offering shall be
withdrawn from such registration, and shall not be transferred in a public
distribution prior to 60 days after the effective date of the Registration
Statement relating thereto, or such other shorter period of time as the
underwriters may require.

3.   Registration Procedure. With respect to the Registration Rights, the
following provisions shall apply:

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     (c) The Holder shall be obligated to furnish to the Company and the
underwriters such information regarding the Registrable Securities and the
proposed manner of distribution of the Registrable Securities as the Company and
the underwriters may request in writing and as shall be required in connection
with any registration, qualification or compliance referred to herein and shall
otherwise cooperate with the Company and the underwriters in connection with
such registration, qualification or compliance.

     (d) With a view to making available the benefits of certain rules and
regulations of the Securities and Exchange Commission (the "SEC") which may at
any time permit the sale of any Restricted Securities as defined in Rule 144
("Rule 144") promulgated under the Securities Act of 1933, as amended (the
"Securities Act") to the public without registration, the Company agrees to use
its best lawful efforts to:

               (i) Make and keep public information available, as those ten-ns
are understood and defined in Rule 144 at all times during which the Company is
subject to the reporting requirements of the Securities Exchange Act of 1934, as
amended (the "Exchange Act");

              (ii) File with the SEC in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act
(at all times during which the Company is subject to such reporting
requirements); and

             (iii) So long as the Holder owns any Restricted Securities, to
furnish to the Holder upon request a written statement from the Company as to
its compliance with the reporting requirements of Rule 144 and with regard to
the Securities Act and the Exchange Act (at all times during which the Company
is subject to such reporting requirements), a copy of the most recent annual or
quarterly report of the Company, and such other reports and documents of the
Company and other information in the possession of or reasonably obtainable by
the Company as the Holder may reasonably request in availing itself of any rule
or regulation of the SEC allowing the Holder to sell any Restricted Securities
without registration.

     (e) The Company agrees that it will furnish to the Holder such number of
prospectuses meeting the requirements of Section 10(a)(3) of the Securities Act,
offering circulars or other documents incident to any registration,
qualification or compliance referred to herein as provided or, if not otherwise
provided, as the Holder from time to time may reasonably request.

     (f) All expenses (except for any underwriting and selling discounts and
commissions and legal fees for the Holder's attorneys) of any registrations
permitted pursuant to this Agreement and of all other offerings by the Company
(including, but not limited to, the expenses of any qualifications under the
blue sky or other state securities laws and compliance with governmental
requirements of preparing and filing any post-effective amendments required for
the lawful distribution of the Registrable Securities to the public in
connection with such registration, of supplying prospectuses, offering circulars
or other documents) will be paid by the Company.

     (g) In connection with the preparation and filing of any Registration
Statement under the Securities Act pursuant to this Agreement, the Company will
give the Holder and the Holder's attorneys and accountants, the opportunity to
participate in the preparation of any Registration Statement, each prospectus
included therein or filed with the SEC, and each amendment thereof or supplement
thereto, and will give each of them such access to its books and records and
opportunities to discuss the business of the Company with its officers and the
independent public accountants who have certified its financial statements as
shall be necessary to conduct a reasonable investigation within the meaning of
the Securities Act.

     (h) The Company shall notify each Holder of Registrable Securities covered
by a Registration Statement, during the time when a prospectus relating thereto
is required to be delivered under the Securities Act, of the happening of any
event as a result of which the prospectus included in the Registration
Statement, as then in effect, includes an untrue statement of a material fact or
omits to state a material fact required to be stated therein or necessary to
make the statements therein not misleading in the light of the circumstances
then existing.

4.   Blackout Period. At any time after the effective date of the Registration
Statement, if the Company gives to the Holder a notice pursuant to Paragraph
3(f) hereof and stating that the Company requires the suspension by the

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Holder of the distribution of any of the Registrable Securities, then the Holder
shall cease distributing the Registrable Securities for such period of time (the
"Blackout Period"), not to exceed 120 days from the time notice is sent until
the Company informs the Holder that the Blackout Period has been terminated.
Upon notice by the Company to the Holder of such determination, the Holder will
(a) keep the fact of any such notice strictly confidential, (b) promptly halt
any offer, sale, trading or transfer of any of the Registrable Securities for
the duration of the Blackout Period, and (c) promptly halt any use, publication,
dissemination or distribution of each prospectus included within the
Registration Statement, and any amendment or supplement thereto by it and any of
its affiliates for the duration of the Blackout Period.

5. Lock-Up. In connection with any Underwritten Public Offering, the Holder
agrees, if requested, to execute a lock-up letter addressed to the managing
underwriter in customary form agreeing not to sell or otherwise dispose of the
Registrable Securities owned by the Holder (other than any that may be included
in the offering) for a period not exceeding 180 days.

6. Delay of Registration. No Holder shall have any right to obtain or seek an
injunction restraining or otherwise delaying any registration of the Registrable
Securities as the result of any controversy that might arise with respect to the
interpretation or implementation of this Agreement.

7. Indemnification by the Company. In the event of any registration of the
Registrable Securities of the Company under the Securities Act, pursuant to the
terms of this Agreement, the Company agrees to indemnity and hold harmless the
Holder and each other person who participates as an underwriter in the offering
or sale of the Registrable Securities against any and all claims, demands,
losses, costs, expenses, obligations, liabilities, joint or several, damages,
recoveries and deficiencies, including interest, penalties and attorneys' fees
(collectively the "Claims"), to which the Holder or any such underwriter may
become subject under the Securities Act or otherwise, insofar as the Claims or
actions or proceedings, whether commenced or threatened, in respect thereto
arise out of or are based on any untrue statement or alleged untrue statement of
any material fact contained in any Registration Statement under which the
Holder's Registrable Securities were registered under the Securities Act, any
preliminary prospectus, final prospectus or summary prospectus contained
therein, or any amendment or supplement thereto, or any omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and the Company will
reimburse the Holder and each such underwriter for any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
Claim or action or proceeding in respect thereto; provided that the Company
shall not be liable in any such case to the extent that any Claim or action or
proceeding in respect thereof or expense arises out of or is based on an untrue
statement or alleged untrue statement or omission or alleged omission made in
the Registration Statement, any such preliminary prospectus, final prospectus,
summary prospectus, amendment or supplement in reliance on and in conformity
with written information furnished to the Company through an instrument duly
executed by the Holder specifically stating that it is for use in the
preparation thereof. Such indemnity shall remain in full force and effect
regardless of any investigation made by or on behalf of the Holder or any such
underwriter and survive the transfer of the Registrable Securities by the
Holder.

8. Indemnification by the Holder. The Company may require, as a condition to
including the Registrable Securities in any Registration Statement filed
pursuant to this Agreement, that the Company shall have received an undertaking
satisfactory to it from the Holder, to indemnify and hold harmless (in the same
manner and to the same extent as set forth in Paragraph 7 hereof) the Company,
each director and officer of the Company and each other person, if any, who
controls the Company within the meaning of the Securities Act, with respect to
any statement or alleged statement or alleged statement in or omission or
alleged omission from the Registration Statement, any preliminary prospectus
contained therein, or any amendment or supplement thereto, if such statement or
alleged statement or omission or alleged omission was made in reliance on and in
conformity with written information furnished to the Company through an
instrument duly executed by the Holder specifically stating that it is for use
in the preparation of the Registration Statement, preliminary prospectus, final
prospectus, summary prospectus, amendment or supplement. Notwithstanding the
foregoing, the maximum liability hereunder which the Holder shall be required to
suffer shall be limited to the net proceeds to the Holder from the Registrable
Securities sold by the Holder in any such offering. Such indemnity shall remain
in full force and effect, regardless of any investigation made by or on behalf
of the Company or any such director, officer or controlling person and shall
survive the transfer of the Registrable Securities by the Holder.

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9. Notice of Claims. Promptly after receipt by an indemnified party of notice of
the commencement of any action or proceeding involving a Claim, such indemnified
party will, if a claim in respect thereof is to be made against an indemnifying
party, give written notice to the latter of the commencement of such action,
provided that the failure of any indemnified party to give notice as provided
herein shall not relieve the indemnifying party of its obligations under this
Agreement except to the extent that the indemnifying party is actually
prejudiced by such failure to give notice. In case any such action is brought
against an indemnifying party, unless in such indemnified party's reasonable
judgment a conflict of interest between such indemnified and indemnifying
parties may exist in respect of a Claim the indemnifying party shall be entitled
to participate in and to assume the defense thereof, jointly with any other
indemnifying party similarly notified to the extent that it may wish, with
counsel reasonably satisfactory to such indemnified party, and after notice from
the indemnifying party to such indemnified party of its election so to assume
the defense thereof, the indemnifying party shall not be liable to such
indemnified party for any legal or other expenses subsequently incurred by the
latter in connection with the defense thereof other than reasonable costs of
investigation. No indemnifying party shall, without the consent of the
indemnified party, consent to entry of any judgment or enter into any settlement
that does not include as an unconditional term thereof the giving by the
claimant or plaintiff to such indemnified arty of a release from all liability
in respect of a Claim.

10. Indemnification Payments. The indemnification required by this Agreement
shall be made by periodic payments of the amount thereof during the course of
the investigation or defense, as and when bills are received or expense, loss,
damage or liability is incurred.

11. Assignment of Registration Rights. The rights to cause the Company to
register Registrable Securities pursuant to this Agreement may be assigned by
the Holder to a transferee or assignee of such securities who shall, upon such
transfer or assignment, be deemed a Holder under this Agreement; provided that
the Company is furnished with written notice of the name and address of such
transferee or assignee and the Registrable Securities with respect to which the
Registration Rights are being assigned; provided, further, that such assignment
shall be effective only if immediately following such transfer the further
disposition of such securities by the transferee or assignee is restricted under
the Securities Act and that such transferee or assignee is either (a) a member
of the immediate family or a trust for the benefit of any Holder that is an
individual or (b) a transferee or assignee that after the transfer or assignment
holds all of the Registrable Securities.

12. Termination of this Agreement. This Agreement shall terminate with respect
to the Holder when all of the Registrable Securities have been registered as
provided herein.

13. Conflict. Notwithstanding anything herein contained to the contrary, in the
event of any conflict between the terms of the Letter Agreement or this
Agreement, the terms of this Agreement shall control.

14. Attorney's Fees. In the event that it should become necessary for any party
entitled hereunder to bring suit against any other party to this Agreement for
enforcement of the covenants herein contained, the parties hereby covenant and
agree that the party who is found to be in violation of said covenants shall
also be liable for all reasonable counsel's fees and costs of court incurred by
the other parties hereto.

15. Governing law; Jurisdiction. This Agreement shall be governed by and
construed in accordance with the laws of the State of Texas, without regard to
any conflicts of laws provisions thereof. Each party hereby irrevocably submits
to the personal jurisdiction of the United States District Court for Bexar
County, Texas, as well as of the District Courts of the State of Texas in Bexar
County, Texas over any suit, action or proceeding arising out of or relating to
this Agreement. Each party hereby irrevocably waives, to the fullest extent
permitted by law, any objection which it may now or hereafter have to the laying
of the venue of any such mediation, arbitration, suit, action or proceeding
brought in any such county and any claim that any such mediation, arbitration,
suit, action or proceeding brought in such county has been brought in an
inconvenient forum.

16.  Arbitration. Any controversy or claim arising out of or relating to this
Agreement, or the breach, termination, or validity thereof, shall be settled by
final and binding arbitration in accordance with the Commercial Arbitration
Rules of the American Arbitration Association ("AAA Rules") in effect as of the
effective date of this Agreement. The American Arbitration Association shall be
responsible for (a) appointing a sole arbitrator, and (b) administering the case
in accordance with the AAA Rules. The situs of the arbitration shall be San
Antonio, Texas. Upon the application of

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either party to this Agreement, and whether or not an arbitration proceeding has
yet been initiated, all courts having jurisdiction hereby are authorized to: (x)
issue and enforce in any lawful manner, such temporary restraining orders,
preliminary injunctions and other interim measures of relief as may be necessary
to prevent harm to a party's interest or as otherwise may be appropriate pending
the conclusion of arbitration proceedings pursuant to this Agreement; and (y)
enter and enforce in any lawful manner such judgments for permanent equitable
relief as may be necessary to prevent harm to a party's interest or as otherwise
may be appropriate following the issuance of arbitral awards pursuant to this
Agreement. Any order or judgment rendered by the arbitrator may be entered and
enforced by any court having competent jurisdiction.

17.  Benefit. All the terms and provisions of this Agreement shall be binding
upon and inure to the benefit of and be enforceable by the parties hereto, and
their respective heirs, executors, administrators, personal representatives,
successors and permitted assigns. Notwithstanding anything herein contained to
the contrary, the Company shall have the right to assign this Agreement to any
party without the consent of the Holder.

18.  Notices. All notices, requests and other communications hereunder shall be
in writing and shall be deemed to have been duly given at the time of receipt if
delivered by hand or communicated by electronic transmission, or, if mailed,
three days after deposit in the United States mail, registered or certified,
return receipt requested, with postage prepaid and addressed to the party to
receive same, if to the Company, addressed to Mr. John D. Walker II at 5617
Grissom Road, San Antonio, Texas 78238, telephone (210) 256-8300, fax (210) 256-
1992, and e-mail johnny@biolynx.com; and if to the Holder, addressed to Henry A.
Schulle at 1800 Bering, Suite 400, Houston, Texas 77057, telephone (713) 334-
8224, and fax (713) 334-8232; provided, however, that if either party shall have
designated a different address by notice to the other given as provided above,
then any subsequent notice shall be addressed to such party at the last address
so designated.

19.  Construction. Words of any gender used in this Agreement shall be held and
construed to include any other gender, and words in the singular number shall be
held to include the plural, and vice versa, unless the context requires
otherwise. In addition, the pronouns used in this Agreement shall be understood
and construed to apply whether the party referred to is an individual,
partnership, joint venture, corporation or an individual or individuals doing
business under a firm or trade name, and the masculine, feminine and neuter
pronouns shall each include the other and may be used interchangeably with the
same meaning.

20.  General Assurances. The parties agree to execute, acknowledge, and deliver
all such further instruments, and do all such other acts, as may be necessary or
appropriate in order to carry out the intent and purposes of this Agreement.

21.  Construction of Agreement. The parties hereto acknowledge and agree that
neither this Agreement nor any of the other documents executed in connection
herewith shall be construed more favorably in favor of one than the other based
upon which party drafted the same, it being acknowledged that each of the
parties hereto contributed substantially to the negotiation and preparation of
this Agreement and the documents executed in connection herewith.

22.  No Third Party Beneficiaries. Except as otherwise expressly forth in this
Agreement, no person or entity not a party to this Agreement shall have rights
under this Agreement as a third party beneficiary or otherwise.

23.  Incorporation by Reference. Any agreement referred to herein is hereby
incorporated into this Agreement by this reference.

24.  Relationship of Parties. The Holder is providing services on an independent
contractor basis. Notwithstanding anything to the contrary herein, this
Agreement shall not in any manner be construed to create a joint venture,
partnership, agency or other similar form of relationship, and neither party
shall have the right or authority to: (a) commit the other party to any
obligation or transaction not expressly authorized by such other party, or (b)
act or purport to act as agent or representative of the other, except as
expressly authorized in writing by such other party. Further, the Holder shall
not be deemed to be an employee of the Company for any reason. The Company and
the Holder acknowledge that the Holder shall not be entitled to any insurance,
pension, profit sharing, retirement or other fringe benefits which the Company
may provide to its employees during the term of this Agreement.

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25.   Waiver. No course of dealing on the part of any party hereto or its
agents, or any failure or delay by any such party with respect to exercising any
right, power or privilege of such party under this Agreement or any instrument
referred to herein shall operate as a waiver thereof, and any single or partial
exercise of any such right, power or privilege shall not preclude any later
exercise thereof or any exercise of any other right, power or privilege
hereunder or thereunder.

26.   Cumulative Rights. The rights and remedies of any party under this
Agreement and the instruments executed or to be executed in connection herewith,
or any of them, shall be cumulative and the exercise or partial exercise of any
such right or remedy shall not preclude the exercise of any other right or
remedy.

27.   Invalidity. In the event any one or more of the provisions contained in
this Agreement or in any instrument referred to herein or executed in connection
herewith shall, for any reason, be held to be invalid, illegal or unenforceable
in any respect, such invalidity, illegality, or unenforceability shall not
affect the other provisions of this Agreement or any such other instrument.

28.   Excusable Delay. None of the parties hereto shall be obligated to perform
and none shall be deemed to be in default hereunder, if the performance of a
non-monetary obligation is prevented by the occurrence of any of the following,
other than as the result of the financial inability of the party obligated to
perform: acts of God, strikes, lock-outs, other industrial disturbances, acts of
a public enemy, wars or war-like action (whether actual, impending or expected
and whether de jure or de facto), arrest or other restraint of governmental
(civil or military) blockades, insurrections, riots, epidemics, landslides,
lightning, earthquakes, fires, hurricanes, storms, floods, washouts, sink holes,
civil disturbances, explosions, breakage or accident to equipment or machinery,
confiscation or seizure by any government of public authority, nuclear reaction
or radiation, radioactive contamination or other causes, whether of the kind
herein enumerated, or otherwise, that are not reasonably within the control of
the party claiming the right to delay performance on account of such occurrence.

29.  Time of the Essence.  Time is of the essence of this Agreement.

30.  Headings. The headings used in this Agreement are for convenience and
reference only and in no way define, limit, simplify or describe the scope or
intent of this Agreement, and in no way effect or constitute a part of this
Agreement.

31.  Multiple Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

32.  Entire Agreement. This instrument, together with the Letter Agreement,
contains the entire understanding of the parties and may not be changed orally,
but only by an instrument in writing signed by the party against whom
enforcement of any waiver, change, modification, extension, or discharge is
sought.

     IN WITNESS WHEREOF, the parties have executed this Agreement on the date
first written above.

                                              BIOLYNX, INC.


                                              By /s/ John D. Walker II
                                                ---------------------------
                                                John D. Walker II, President


                                              SABINAL TRUST


                                              By /s/ Henry A. Schulle
                                                ---------------------------
                                                Henry A. Schulle, Trustee

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