How is the lac operon regulated by the repres | vedclass

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(B) The $lac$ operon is a classic example of an inducible operon that is under negative control. In the absence of the inducer (lactose),the repressor

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Negative

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(B) The $lac$ operon is a classic example of an inducible operon that is under negative control. In the absence of the inducer (lactose),the repressor protein binds to the operator region,which prevents $RNA$ polymerase from transcribing the structural genes. This binding of the repressor to the operator blocks the transcription process,which is defined as negative regulation. Therefore,the repressor acts as a negative regulator of the $lac$ operon.

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

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

Similar Questions

In the $lac$ operon,which of the following acts as an inducer?

Which of the following would you expect to find in an inducible system?

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

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

In the $Lac$ operon,to which component does the inducer bind to switch the system 'on'?

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