E. coli lac operon control by CAP is:
A) negative inducible.
B) negative repressible.
C) positive inducible.
D) positive repressible.
E) regulated by riboswitches.

Question

Quizplus · Accepted Answer

The E. coli lac operon is controlled by catabolite activator protein (CAP) in a positive inducible manner. CAP activates transcription in the presence of cAMP, which accumulates when glucose levels are low, thus inducing the operon.

E. Coli Lac Operon Control by CAP Is