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The Lac Operon

16. Regulation of Expression / The Lac Operon / Problem 3

The lac operon is involved in lactose metabolism in bacteria. It is activated under which condition?

A

In the presence of lactose and the absence of glucose.

B

In the abundance of lactose and glucose.

C

In the absence of lactose and the presence of glucose.

D

In the absence of both lactose and glucose.

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