TLS 
Triyambak Life Sciences

Nurturing Life Sciences

TLS Online

Nurturing Life Sciences

Store
Login

Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 2634
TLS Online TPP Program

#Question id: 2659


The correct option regarding the lac operon in E.coli from the following is

#Unit 2. Cellular Organization
  1. Lac operon is switched on in the absence of lactose

  2. Lac repressor binds to the lac promoter

  3. β-galactosidase is the only enzyme produced in large quantities when lac operon is turned on

  4. lac operon messenger RNA is a polycistronic mRNA


Answer:- Option(s): 4


To access the video solutions, Please subscribe TPP program.

Subscribe Now 
More Questions
TLS Online TPP Program

#Question id: 24601

#Unit 2. Cellular Organization

G1 chromatid are the product of

TLS Online TPP Program

#Question id: 24602

#Unit 2. Cellular Organization

Which of the following is correct regarding solenoid and zigzag model

TLS Online TPP Program

#Question id: 24603

#Unit 2. Cellular Organization

Presence of introns leads to which phenomenon

TLS Online TPP Program

#Question id: 24604

#Unit 2. Cellular Organization

Interrupted genes are equal to

TLS Online TPP Program

#Question id: 24605

#Unit 2. Cellular Organization

Which of the following phenomenon will be affected most if exon – intron undergoes single base substitution

TLS Online TPP Program

#Question id: 24606

#Unit 2. Cellular Organization

What can be the most acceptable length/or most predicted length of

TLS Triyambak Life Sciences Nurturing Life Sciences
TLS Android APP TLS IOS APP

Company

  • About us
  • Careers
  • Terms of service
  • Privacy policy

Help & Support

  • User Guidelines
  • Refund Policy

Products

  • TLS APP
  • TPP APP

Contact Us

117/429-4 Q Block, behind Hotel DNG Grand, Sharda Nagar, Kanpur,
Uttar Pradesh 208025
India
Phone: +91 9919149001, +917007912133
Email: info@triyambak.org

© 2026 Copyright Triyambak Life Sciences Pvt Ltd. All Rights Reserved