Limited access

Upgrade to access all content for this subject

Which of the following is an example of positive gene regulation?

A

The tryptophan gene, in which the presence of tryptophan functions as a corepressor to prevent its own transcription.

B

The lac gene, in which the repressor preventing the synthesis of the enzymes that degrade lactose is deactivated by the presence of lactose.

C

CAP, which acts as a required transcription factor for the enzymes that degrade lactose.

D

Inducible operons in which the inducer is a substrate.

Select an assignment template