Which is incorrect about inducible operons?
A)have genes turned off by a buildup of end product
B)often encode enzymes for catabolic pathways
C)are normally turned off
D)are turned on by the substrate of the enzyme
E)include the lac operon

Question

Quizplus · Accepted Answer

Inducible operons are usually turned off and are turned on by the presence of the substrate for the enzyme, not by a buildup of the end product. This is why they often encode enzymes for catabolic pathways as they are only needed when the substrate is present. The lac operon is an example of an inducible operon.

Which Is Incorrect About Inducible Operons