Which of the following switches off the lac o | vedclass

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(B) The $lac$ operon is regulated by a repressor protein. This repressor protein is encoded by the regulator gene,known as the $lacI$ gene. In the abs

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Regulator gene

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(B) The $lac$ operon is regulated by a repressor protein. This repressor protein is encoded by the regulator gene,known as the $lacI$ gene. In the absence of an inducer (like lactose),the repressor protein binds to the operator gene,thereby preventing $RNA$ polymerase from transcribing the structural genes. Thus,the regulator gene is responsible for switching off the $lac$ operon.

Which of the following switches off the $lac$ operon?

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