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In the medium where E. Coli was growing,...

In the medium where E. Coli was growing, lactose was added, which induced the lac operon. Why does (an. lac operon shut down otter sometime addition of lactose in the medium?

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In Lac operon, note the change which take place when lactose is added.

In an E. coli culture lactose is used as food instead of glucose. If so, answer the following questions: If lactose is removed from the medium what will happen?

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