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MCQ Detail

MCQ Detail

In the context of the lac operon in E. coli, what role does the lac repressor play?

A

B

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D

Answer: Inhibits transcription of the lac operon

Explanation:

The lac repressor binds to the operator region of the lac operon and inhibits transcription when lactose is not present. When lactose is available, it binds to the repressor, causing a conformational change that prevents the repressor from binding to the operator, allowing transcription.

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