Which of the following molecules is a corepressor for the trp operon?

A. glucose
B. cAMP
C. tryptophan
D. CAP
E. lactose


C. tryptophan

Biology & Microbiology

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This initiator tRNA of the bacterium Escherichia is a modified form of the initiator tRNA used by the yeast Saccharomyces.

Answer the following statement true (T) or false (F)

Biology & Microbiology

In a dihybrid cross, in which both parents are heterozygous for both traits, what is the probability that the offspring will exhibit both of the dominant phenotypes?

A. 1/16. B. 1. C. 6/16. D. 3/16. E. 9/16.

Biology & Microbiology

Vaccination is a form of Passive immunization

a. true b. false

Biology & Microbiology

Linked genes are usually ________

A) found on the X chromosome B) found on the Y chromosome C) codominant D) located close together on a chromosome

Biology & Microbiology