Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

تمرين 10

What effect does the amino acid tryptophan have on the trp operon
A) Tryptophan binds to the repressor, resulting in transcription of the trp operon.
B) Tryptophan binds to the repressor and prevents transcription.
C) Tryptophan increases cAMP, activating catabolite activator protein (CAP).
D) Tryptophan interacts with repressor, leading to derepression of the trp operon.