In the Lac Operon,if Lactose Is Present,which of the Following

question 48

Multiple Choice

In the lac operon,if lactose is present,which of the following occurs?

• A)Lactose binds to the repressor,changing its shape so that it can bind to the operator and the structural genes are not expressed.
• B)Lactose bind to RNA polymerase,which then binds to the promoter and transcribes the needed genes.
• C)Lactose binds to the repressor,changing its shape so that it does not bind to the operator.RNA polymerase then transcribes the needed genes.
• D)Lactose binds to the operon,which attracts RNA polymerase,then transcription of the needed genes occurs.

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