There is a mutation in the operator of the lac operon in a cell such that the lac repressor always stays bound to the operator. If lactose is added to the cell, what will happen?
A) Lactose will bind to the repressor, and lac enzymes will be produced.
B) Lactose will bind to the repressor, and lac enzymes will not be produced.
C) Lactose will not bind to the repressor, and lac enzymes will be produced.
D) Lactose will bind to the operator, and lac enzymes will be produced.
Answer: B
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