When glucose is the normal energy source in a | vedclass

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(D) In the $lac$ operon model,the $i$ gene is the regulatory gene that codes for the repressor protein.This repressor protein binds to the operator re

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(D) In the $lac$ operon model,the $i$ gene is the regulatory gene that codes for the repressor protein.This repressor protein binds to the operator region to prevent transcription of the structural genes $(z, y, a)$ when lactose is absent.Even when glucose is the primary energy source,the $i$ gene is constitutively expressed to produce the repressor mRNA,which is then translated into the repressor protein.Therefore,the $i$ gene is responsible for transcribing the repressor mRNA.

When glucose is the normal energy source in a bacterial cell,which gene transcribes a repressor mRNA?

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