Home
Class 12
BIOLOGY
In E. coli, an operator gene combines wi...

In E. coli, an operator gene combines with

A

inducer gene to switch on structural gene action

B

inducer genet o switch off structural gene action

C

regulator protein (repressor) to switch off structural gene action

D

regulator protein to switch on gene action

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MINERAL NUTRITION

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|388 Videos

  • Monera

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|14 Videos

Similar Questions

Explore conceptually related problems

In Escherichia coli, the product of i gene combines with

In E.coli, lac operon is induced by

In E.coli, the lac operon gets switched on when :

A regularity gene produces some kind of protein through its m-RNA that controls the activity of the operator gene which signals the fomation of specific enzyme required for the metabolic breakdown of the food. How does that protein regulate the activity of the operator gene?

A pleiotropic gene 1. is expressed only in primitive plants 2. is a gene evolved during pliocene 3. controls a trait only in combination with another gene 4. controls multiple traits in an individuals

A pleiotropic gene is

A pleiotropic gene is

In normal transistor operation

Assertion . True nucleus is absent in E. coli and other prokaryotes. Reason. An undifferentiated , unorganised, fibrillar nucleus without any limiting membrane is found in prokaryotic cells.

A DNA molecule in E. coli is heavy and labelled with N^(15) . Iit is allowed to replicate in a medium containing N^(14) . After one generation of replication, the two daughter molecules will