In lac operon,the switching on or switching o | vedclass

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Question

(B) In the $lac$ operon,the expression of structural genes is regulated by a repressor protein,which is the product of the regulator gene ($i$ gene).W

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regulator protein

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(B) In the $lac$ operon,the expression of structural genes is regulated by a repressor protein,which is the product of the regulator gene ($i$ gene).When the inducer (lactose) is absent,the repressor protein binds to the operator region,preventing $RNA$ polymerase from transcribing the structural genes (switching off).When the inducer (lactose/allolactose) is present,it binds to the repressor protein,causing a conformational change that prevents the repressor from binding to the operator,thereby allowing transcription to proceed (switching on).Thus,the regulator protein is responsible for switching the operator on or off.

In $lac$ operon,the switching on or switching off of the operator is achieved by . . . . . . .

Similar Questions

$A$: $Lac$ operon exerts negative control only.
$R$: The operator is occupied by aporepressor during regulation.

In $lac$ operon,the gene '$i$' codes for repressor protein,the letter '$i$' indicates . . . . . . .

The regulation of the $lac$ operon by a repressor is known as:

Identify the $INCORRECT$ statement with reference to the regulation of gene expression.

How is the $lac$ operon regulated by the repressor?

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