Full induction of the lactose operon requires
A)Lactose present
B)Lactose and glucose present
C)Lactose present without glucose
D)Lactose and arabinose present
E)All of the choices induce the lactose operon

Question

Quizplus · Accepted Answer

The lactose operon is fully induced when lactose is present and glucose is absent. The absence of glucose leads to high levels of cAMP, which binds to CAP, facilitating RNA polymerase binding and transcription of the operon.

Full Induction of the Lactose Operon Requires