Which of the following acts as an inducer for | vedclass

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(D) In the $lac$ operon,the presence of lactose acts as an inducer.When lactose enters the cell,a small amount of it is converted into its isomer,$all

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Allolactose

Vedclass · Answer

(D) In the $lac$ operon,the presence of lactose acts as an inducer.When lactose enters the cell,a small amount of it is converted into its isomer,$allolactose$,by the enzyme $\beta-galactosidase$.$Allolactose$ binds to the repressor protein,causing a conformational change that prevents the repressor from binding to the operator region.This allows $RNA$ polymerase to transcribe the structural genes $(lacZ, lacY, lacA)$,thereby inducing the operon.

Which of the following acts as an inducer for the $lac$ operon?

Similar Questions

Statement $I$: Lac operator is present only in $lac$-operon and it interacts specifically with $lac$-repressor only.
Statement $II$: Each operon does not have a specific operator and a specific repressor.

Given below is the representation of the $lac$ operon of $E. coli$. Identify $I$ and $II$ from the options given below.

$I$ Promoter $II$ $Z$ $Y$ $A$

All of the following are part of an operon except:

In $lac$ operon,the regulator gene codes for

Transposons can be used during which one of the following?

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