Which of the following mutations could lead to constitutive expression of the genes of the lac operon?

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Which of the following mutations could lead to constitutive expression of the genes of the lac operon? A. A mutation in the operator sequence B. A mutation in the lac-Z gene C. A mutation in the lac-Y gene D. A super repressor mutation

The Correct Answer is

ASuch a mutation could prevent binding of the repressor, allowing expression under all conditions.

Reason Explained

ASuch a mutation could prevent binding of the repressor, allowing expression under all conditions. is correct for Which of the following mutations could lead to constitutive expression of the genes of the lac operon?

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