In the lac operon,which molecule binds to the | vedclass

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Question

(A) In the $lac$ operon,the $RNA$ polymerase enzyme binds to the promoter site to initiate the transcription of structural genes $(lacZ, lacY, lacA)$.

Vedclass · Accepted Answer

$RNA$ polymerase

Vedclass · Answer

(A) In the $lac$ operon,the $RNA$ polymerase enzyme binds to the promoter site to initiate the transcription of structural genes $(lacZ, lacY, lacA)$.When the inducer (lactose) is present,it binds to the repressor protein,preventing it from binding to the operator,thus allowing $RNA$ polymerase to transcribe the genes.Therefore,the molecule that binds to the promoter site to facilitate transcription is $RNA$ polymerase.

Column-$I$	Column-$II$
$(i)$ Operator site	$(a)$ Codes for enzyme (protein)
$(ii)$ Promoter site	$(b)$ Codes for repressor
$(iii)$ Structural gene	$(c)$ Binding site for $RNA$ polymerase
$(iv)$ Regulator gene	$(d)$ Binding site for repressor

In the $lac$ operon,which molecule binds to the promoter site?

Similar Questions

The switching on and off of the $lac$ operon is regulated by which of the following?

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

At which site does the repressor bind in the $Lac$ operon?

Identify the $INCORRECT$ statement from the following with reference to lac operon.

Match Column-$I$ with Column-$II$:

Column-$I$ Column-$II$

$(i)$ Operator site $(a)$ Codes for enzyme (protein)

$(ii)$ Promoter site $(b)$ Codes for repressor

$(iii)$ Structural gene $(c)$ Binding site for $RNA$ polymerase

$(iv)$ Regulator gene $(d)$ Binding site for repressor

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