Question

Each component of the lac operon is important to the overall ability of the operon to selectively express the structural genes necessary for lactose metabolism.

A) True
B) False

Answer 1

Each component of the lac operon is important for the selective expression of the structural genes necessary for lactose metabolism.

Step-by-step explanation:

True. Each component of the lac operon, including the regulatory regions and the structural genes lacZ, lacY, and lacA, is important for the selective expression of the structural genes necessary for lactose metabolism. The lac operon consists of regulatory regions such as the promoter, which controls the initiation of transcription, and the operator, which controls the accessibility of the promoter. The structural genes code for proteins involved in lactose metabolism, and their expression is regulated by the presence of lactose and the absence of glucose.