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Genetics and Molecular Biology

MCQ Detail

MCQ Detail

In the lac operon model, what happens when lactose is present?

A

B

C

D

Answer: The repressor is inactivated

Explanation:

When lactose is present, it binds to the repressor protein, causing it to change shape and release from the operator region, allowing RNA polymerase to transcribe the genes needed for lactose metabolism.

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