Two Gametes,each Carrying a Mutant Recessive Allele for a Different

question 9

Multiple Choice

Two gametes,each carrying a mutant recessive allele for a different gene/enzyme in the adenine biosynthetic pathway,come together to form a diploid embryo.The individual derived from this embryo will display a:

• A)lethal phenotype in media lacking adenine supplementation.
• B)wild-type phenotype,capable of synthesizing adenine.
• C)a weak adenine requirement for survival (intermediate phenotype).
• D)a profound defect in adenine synthesis as two enzymes are missing.
• E)embryonic lethality.

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Definitions:

NLRB

The National Labor Relations Board, a US government agency responsible for enforcing US labor law in relation to collective bargaining and unfair labor practices.

Bylaws

Rules that guide a corporation’s day-to-day internal affairs. Also known as regulations.

Secondary Boycott

Conspiracy in which a union places pressure on a neutral customer or supplier with whom the union has no dispute in order to cause the neutral entity to cease doing business with the employer with whom the union has a dispute.

National Emergency Strike

A work stoppage, sanctioned or enacted, during a declared national emergency to press for demands or protest issues.