Which of the following binds to the repressor | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the $lac$ operon model,the repressor protein is synthesized in an active form that binds to the operator region,preventing $RNA$ polymerase fro

Vedclass · Accepted Answer

Inducer

Vedclass · Answer

(A) In the $lac$ operon model,the repressor protein is synthesized in an active form that binds to the operator region,preventing $RNA$ polymerase from transcribing the structural genes.When an inducer (such as lactose or allolactose) is present,it binds to the repressor protein.This binding causes a conformational change in the repressor protein,rendering it inactive.As a result,the inactive repressor can no longer bind to the operator,allowing $RNA$ polymerase to access the promoter and initiate transcription.

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

Which of the following binds to the repressor,causing the repressor and the operator to dissociate from each other?

Similar Questions

Which of the following is the substrate for $\beta$-galactosidase?

Wild-type $E. coli$ cells are grown in a normal medium containing glucose. They are then transferred to a medium containing only lactose as the sugar source. Which of the following changes will occur?

In $Escherichia \ coli$,$lac$ operon is induced by

In the $lac$ operon, what does the term "$lac$" refer to?

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

Vedclass Test Series

Exam Paper Generator

Online Exam Module