Question

Sketch a schematic diagram of lac operon in switched on position. How is the operon switched off? Explain.

Answer 1

Answer:

• Lac operon of switched on and switched off depends on the presence or absence of lactose.

• When all lactose molecules are digested then repressor protein is free.

• In the operon, the repressor protein binds to the operator region that inhibits the transcription process which results switched off operon.

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Answer 2

Answer:

Answer: Lac operon of switched on and switched off depends on the presence or absence of lactose. When all lactose molecules are digested then repressor protein is free. In the operon, the repressor protein binds to the operator region that inhibits the transcription process which results switched off operon.

Explanation:

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