In the lac-operon model,lactose molecules fun | vedclass

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(D) In the $lac$-operon model,lactose acts as an inducer.Normally,the repressor protein produced by the $i$-gene binds to the operator region,preventi

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Inducers which bind with the repressor protein

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(D) In the $lac$-operon model,lactose acts as an inducer.Normally,the repressor protein produced by the $i$-gene binds to the operator region,preventing $RNA$ polymerase from transcribing the structural genes.When lactose is present,it binds to the repressor protein,causing a conformational change that prevents the repressor from binding to the operator.This allows $RNA$ polymerase to transcribe the structural genes,thus regulating gene expression.

In the $lac$-operon model,lactose molecules function as:

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