According to the operon model,for the synthesis of an inducible enzyme to occur,the
A)end-product must not be in excess.
B)substrate must bind to the enzyme.
C)substrate must bind to the repressor.
D)repressor must bind to the operator.
E)repressor must not be synthesized.

Question

Quizplus · Accepted Answer

The operon model, particularly in the context of an inducible operon like the lac operon, posits that for the synthesis of an inducible enzyme to occur, the substrate (or inducer) must bind to the repressor. This binding alters the repressor's shape, preventing it from binding to the operator region on the DNA, thereby allowing transcription of the genes needed to metabolize the substrate.

According to the Operon Model,for the Synthesis of an Inducible