Gujarati
5.Molecular Basis of Inheritance
medium

In the lac operon, the structural genes are switched off when

A

Repressor binds to operator

B

Repressor binds to promotor

C

Repressor binds to regular

D

Repressor binds to inducer

Solution

(a)A short sequence of $DNA$ where the repressor binds preventing $RNA$ polymerase from attaching to the promoter this is called on/off switch of transcription.

Standard 12
Biology

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