Document:

AMENDED AND RESTATED EMPLOYMENT AGREEMENT

DATE:           April 30, 2010

PARTIES:        Techne Corporation, a                      "Company"
                Minnesota corporation
                614 McKinley Place N.E.
                Minneapolis, Minnesota 55413

                Gregory J. Melsen                          "Employee"

RECITALS:

A.  Employee has been employed by the Company in the position of Vice
President of Finance and Chief Financial Officer pursuant to the terms of a
written Employment Agreement, as amended and/or restated from time to time
("the Prior Employment Agreement"); and

B.  The Company and Employee have agreed to several changes with respect
to Employee's employment.  At the same time, the Company and Employee desire to
continue many of the same terms and conditions in the Prior Employment
Agreement.  Rather than enter into an amendment regarding each changed
provision of the Prior Employment Agreement, Employer and Employee desire to
amend and restate the Prior Employment Agreement in its entirety in the form of
this Amended and Restated Employment Agreement (hereinafter "Agreement"), and
include herein all of the changes that have been agreed to.

AGREEMENTS:

                                      ARTICLE 1.

                     TERM OF EMPLOYMENT:  DUTIES AND SUPERVISION

1.1)  Parties.  The parties to this Agreement are Gregory J. Melsen
("Employee") and Techne Corporation ("Company").  As used herein, Company
refers to Techne Corporation and its subsidiaries including Research and
Diagnostic Systems, Inc. ("R&D"), unless specifically provided otherwise.
All of the rights and obligations created by this Agreement may be performed
by or enforced by or against the Company or R&D or other appropriate
subsidiary.

1.2)  Term of Employment.  The Company hereby agrees to continue to
employ Employee as Vice President of Finance and Chief Financial Officer of
the Company effective May 1, 2010 and continuing through June 30, 2014 unless
earlier terminated as provided in Article 5 hereof.

1.3)  Duties and Supervision.  During the term of this Agreement,
Employee agrees to devote his full time and best efforts to the business and
affairs of the Company, and to perform such services and duties Employee may
from time to time be assigned by the Company, and specifically its President.

                                      ARTICLE 2.

                                     COMPENSATION

2.1)  Salary.  During the period of May 1, 2010 through June 30, 2010,
the Company will pay Employee as base compensation for services to be
rendered hereunder such amount as is commensurate with an annualized salary
of $275,000, to be paid bi-weekly or in accordance with the usual payroll
practices of the Company.  Each subsequent fiscal year (July 1 - June 30)
during the term of Employee's employment by the Company under this Agreement,
Employee's annual base salary shall be reviewed and adjusted by Company's
Compensation Committee in its sole discretion.

2.2)  Management Incentive Bonus Plan.  During each fiscal year of the
term of Employee's employment, Employee shall be eligible to earn a bonus
pursuant to any management incentive plan adopted by the Company's
Compensation Committee from time-to-time.  The performance standards for
earning such bonus and the bonus amount shall be established annually by the
Compensation Committee of the Company and whether the standards have been met
shall be determined by the Compensation Committee.  Company may, but is not
required to, pay some or all of any bonus earned by Employee in the form of
stock options.  Such options are to be granted after the receipt of the
Company's final audit report of the applicable fiscal year and the exercise
price is to be based on the market price of the Company's Common Stock at the
close of the market on the day they are granted.

2.3)  Other Employee Compensation and Benefits.  In addition to the
compensation and benefits provided to Employee in Sections 2.1 and 2.2
hereof, Employee shall be entitled to participate in other employee
compensation and benefit plans from time to time established by the Company
and made available generally to all employees to the extent that Employee's
age, tenure and title make him eligible to receive those benefits.  Employee
shall participate in such compensation and benefit plans on an appropriate
and comparable basis determined by the Board of Directors by reference to all
other employees eligible for participation.  With regard to all insured
benefits to be provided to Employee, benefits shall be subject to due
application by Employee.  The Company has no obligation to pay insured
benefits directly and such benefits are payable to Employee only by the
insurers in accordance with their policies.  Employee shall not be reimbursed
for unused personal days or sick days upon his termination from employment
regardless of the reason, whether voluntary or involuntary.

                                     ARTICLE 3.

                             PAYMENT OF CERTAIN EXPENSES

3.1)  Business Expenses.  In order to enable Employee to better perform
the services required of him hereunder, the Company shall pay or reimburse
Employee for business expenses in accordance with policies to be determined
from time to time by the Board of Directors.  Employee agrees to submit
documentation of such expenses as may be reasonably required by Company.

                                    ARTICLE 4.

              INVENTIONS, PROPRIETARY INFORMATION AND COMPETITION

4.1)  Prior Agreement.  Neither the execution of this Agreement nor any
provision in it shall be interpreted as rescinding or revoking the Employee
Agreement With Respect To Inventions, Proprietary Information, and Unfair
Competition previously entered into between the Company and Employee as of
December 17, 2004 (the "Prior Inventions, Proprietary Information, and Unfair
Competition Agreement").  The Company and Employee hereby agree that the
terms and conditions of such Prior Inventions, Proprietary Information, and
Unfair Competition Agreement shall continue in full force and effect and
shall apply to all businesses of the Company, including not only business
conducted by the Company but also to business conducted through Techne or any
subsidiary or venture of Techne now existing or hereafter created.  The
termination of this Agreement or Employee's employment shall not terminate
Employee's obligations under the Prior Inventions, Proprietary Information,
and Unfair Competition Agreement, the terms and conditions of which shall
survive termination of this Agreement and termination of Employee's
employment for any reason, whether voluntary or involuntary.

                                   ARTICLE 5.

                                  TERMINATION

5.1)  Events of Termination.  Employee's employment shall terminate as
follows:

     (A)  By mutual written agreement of the parties;

     (B)  Upon death of Employee;

     (C)  Employee may terminate his employment at any time upon
     written notice provided to the Board of Directors at least 90 days
     prior to the effective date of termination;

     (D)  The Company may terminate Employee's employment as follows:

          (i)    Upon written notice provided to Employee at least 90
          days prior to the effective date of termination.  In the event
          that Company elects, in its sole discretion to terminate
          Employee's employment under this Section 5.1(D)(i) with less than
          ninety (90) days' notice, Company shall pay Employee an amount
          equal to the base salary and benefits (but not management
          incentive bonus) in lieu of giving all or a portion of the notice
          provided in this Section;

          (ii)   In the event of the merger, sale of the business, or
          change in control of the Company, provided that the salary and
          bonus continuation provisions of Article 6.1 of this Agreement
          are met;

          (iii)	 By written notice to Employee, the Company may
          terminate Employee's employment immediately with cause.  For
          purposes of this Agreement, "cause" shall mean material dishonesty
          or gross misconduct on the part of Employee in the performance of
          Employee's duties hereunder, serious breach of Company policies or
          failure on the part of Employee to perform material duties
          assigned to Employee by the Company's President or Board of
          Directors; and

          (iv)   Upon the occurrence of physical or mental disability of
          Employee to such an extent that Employee is unable to carry on the
          essential functions of Employee's position, with or without
          reasonable accommodation, and such inability continues for a
          period of three months or such other period as may be required by
          applicable law.  Nothing in this Section 5.1(D)(iv) shall limit
          the right of either Party to terminate Employee's employment under
          one of the other provisions of this Section 5.1.

5.2)  Records and Files.  In the event of termination of employment of
Employee, possession of each corporate file and record shall be retained by
the Company, and Employee or his heirs, assigns and legal representatives
shall have no right whatsoever in any such material, information or property.

                                    ARTICLE 6.

                              TERMINATION BENEFITS

6.1)  Termination Benefits.  In the event Employee's employment by the
Company is terminated by the Company or an acquirer of the Company in
connection with a merger, sale or "change in control" of the Company or
Techne, Employee shall be paid at the time of such termination a lump sum
amount equal to the base salary and cost of benefits which would otherwise
have been paid under the terms of this Agreement had this Agreement continued
to be enforced for twelve (12) months from the date of termination and a pro-
rata portion of the management incentive bonus Employee would have been
entitled to receive pursuant to Section 2.2 hereof, if any, during the fiscal
year in which termination occurred; provided, however, that Employee shall be
entitled to the payment set forth in this Section 6.1 only if he executes and
does not rescind a release agreement in a form supplied by the Company, which
will include, but not be limited to, a comprehensive release of claims
against the Company and all related parties, in their official and individual
capacities.  For purposes of this Section 6.1, "change in control" means the
acquisition in one or more transactions by a single party, or any number of
parties acting in concert, of a majority of the outstanding shares of voting
stock of the Company.  Notwithstanding anything in this Agreement to the
contrary, if the payment described in this Section 6.1 is subject to the
requirements of Internal Revenue Code Section 409A and the Company determines
that Employee is a "specified employee" as defined in Code Section 409A as of
the date of Employee's termination of employment, such payment shall not be
paid or commence earlier than the first day of the seventh month following
the date of Employee"s termination of employment.

                                   ARTICLE 7.

                                 MODIFICATIONS

7.1)  Modifications.  Except as provided in Section 4.1 above, this
Agreement supersedes all prior agreements and understandings between the
parties relating to the employment of Employee by the Company and it may not
be changed or terminated orally.  No modification, termination, or attempted
waiver of any of the provisions of this Agreement shall be valid unless in
writing signed by the party against whom the same is sought to be enforced.
Notwithstanding anything in this Agreement to the contrary, the Company
expressly reserves the right to amend this Agreement without Employee's
consent to the extent necessary to comply with Code Section 409A, as it may
be amended from time to time, and the regulations, notices and other guidance
of general applicability issued thereunder.

                                  ARTICLE 8.

                        GOVERNING LAW AND SEVERABILITY

8.1)  Governing Law.  The validity, enforceability, construction and
interpretation of this Agreement shall be governed by the laws of the State
of Minnesota.

8.2)  Severability.  If any term of this Agreement is deemed
unenforceable, void, voidable, or illegal, such unenforceable, void, voidable
or illegal term shall be deemed severable from all other terms of this
Agreement, which shall continue in full force and effect and the Company and
Employee expressly acknowledge that a court of competent jurisdiction may, at
the Company's request, modify and thereafter enforce any of the terms,
conditions, and covenants contained in this Agreement.

                                 ARTICLE 9.

                              BINDING EFFECT

9.1)  Binding Effect.  The breach by the Company of any other agreement
or instrument between the Company and Employee shall not excuse or waive
Employee's performance under, or compliance with, this Agreement.  This
Agreement shall be assignable by the Company and shall be binding upon and
inure to the benefit of Company, its successors and assigns.  The rights of
Employee hereunder are personal and may not be assigned or transferred except
as may be agreed to in writing by the Company.

                                ARTICLE 10.

                               ARBITRATION

10.1) Arbitration.  Any dispute arising out of or relating to (i) this
Agreement or the alleged breach of it, or the making of this Agreement,
including claims of fraud in the inducement, or (ii) Employee's application
or candidacy for employment, employment and/or termination of employment with
Company including, but not limited to, any and all disputes, claims or
controversies relating to discrimination, harassment, retaliation, wrongful
discharge, and any and all other claims of any type under any federal or
state constitution or any federal, state, or local statutory or common law
shall be discussed between the disputing parties in a good faith effort to
arrive at a mutual settlement of any such controversy.  If, notwithstanding,
such dispute cannot be resolved, such dispute shall be settled by binding
arbitration.  Judgment upon the award rendered by the arbitrator may be
entered in any court having jurisdiction thereof.  The arbitrator shall be a
retired state or federal judge or an attorney who has practiced securities or
business litigation for at least 10 years.  If the parties cannot agree on an
arbitrator within 20 days, any party may request that the chief judge of the
District Court for Hennepin County, Minnesota, select an arbitrator.
Arbitration will be conducted pursuant to the provisions of this Agreement,
and the commercial arbitration rules of the American Arbitration Association,
unless such rules are inconsistent with the provisions of this Agreement, but
without submission of the dispute to such Association.  Limited civil
discovery shall be permitted for the production of documents and taking of
depositions.  Unresolved discovery disputes may be brought to the attention
of the arbitrator who may dispose of such dispute.  The arbitrator shall have
the authority to award any remedy or relief that a court of this state could
order or grant; provided, however, that punitive or exemplary damages shall
not be awarded. The arbitrator may award to the prevailing party, if any, as
determined by the arbitrator, all of its costs and fees, including the
arbitrator's fees, administrative fees, travel expenses, out-of-pocket
expenses and reasonable attorneys' fees.  Unless otherwise agreed by the
parties, the place of any arbitration proceedings shall be Hennepin County,
Minnesota.  This agreement to arbitrate does not include worker's
compensation claims, claims for unemployment compensation, or any injunctive
or other relief to which the Company may be entitled in accordance with the
Prior Inventions, Proprietary Information, and Unfair Competition Agreement
referred to in Section 4.1 herein.

IN WITNESS WHEREOF, the parties have executed this Agreement and caused
it to be dated as of the day and year first above written.

TECHNE CORPORATION

By  /s/ Thomas E. Oland

     Its President
     "Company"

    /s/ Gregory J. Melsen

     "Employee"TECHNE CORPORATION
      Description of Amended Executive Officer's Incentive Bonus Plan

The Techne Corporation Executive Officer's Incentive Bonus Plan, as amended
(the "Plan"), is designed to reward executive officers of Techne Corporation
(the "Company") in relation to the Company's financial performance and each
executive officer's achievement of his or her individual goals.

Each executive officer may earn a cash bonus of up to 40% of his or her base
salary for the fiscal year.  The Plan provides that 70% of the cash bonus is
determined by the Company's revenue and earnings increases during the prior
fiscal year adjusted, where applicable, for the performance of the executive
officer's segment of the Company.  The remaining 30% is determined by the
executive officer's achievement of his or her individual goals, which are set
by the executive officer in consultation with the Executive Compensation
Committee.  Whether an executive officer besides the President has achieved
his or her goals is determined by the Executive Compensation Committee,
which may take into account the President's recommendations on the
achievement percentages for such executive officers.  Whether the President
has achieved his goals is determined by the Executive Compensation Committee
in its sole discretion.

The Company's executive officers also earn stock options equal to the amount
of their respective cash bonus.  The number of options an executive officer
receives is calculated by dividing the amount of the executive officer's cash
bonus by the fair value of the options on the date of grant, calculated in
accordance with FASB Accounting Standards Codification Topic 718.  The
options granted are immediately exercisable, have a seven-year term and have
an exercise price equal to the closing sale price of the Company's common
stock as of the date of grant.

In addition, executive officers are eligible for block grants of stock
options when they renew their employment agreements.  The number of shares
granted are determined by the Executive Compensation Committee, with a
minimum of 5,000 shares per year of the employment agreement's term.  The
options vest annually in equal amounts over the life of the employment
agreement.

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