Which of the following does NOT occur when lactose is present in the environment of
A) The lac repressor binds to the operator.
B) The RNA polymerase binds to the promoter.
C) Three different genes are transcribed.
D) The repressor binds to lactose.
E) The enzymes that break down lactose are synthesized.

Question

Quizplus · Accepted Answer

In the case of the lac operon, the structural genes code for enzymes that metabolize lactose. When lactose is absent, the repressor binds to the operator and shuts off the operon. When lactose is present, it binds to the repressor so that it can no longer bind to the operator, and this allows RNA polymerase to transcribe the structural genes.Bloom's

Which of the Following Does NOT Occur When Lactose Is