Multiple Choice
The expression of the tryptophan operon is controlled by a(n)
A) repressor that is active when it is alone.
B) repressor that is inactive when it binds to lactose.
C) repressor that is active when it binds to tryptophan.
D) activator that turns the operon on by binding to DNA.
Correct Answer:

Verified
Correct Answer:
Verified
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