NEET UG 2022 · Zoology · Question 177
NEET 2022 Zoology, question 177
Question 177 of the NEET 2022 paper (code R1) is a Zoology question from Molecular Basis of Inheritance. Its idea, Inducer and Repressor Control, was asked twice, in 2022 and 2026, across NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q177 · Zoology
In an E.coli strain i gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome ?
- 1RNA polymerase will bind the promoter region
- 2Only z gene will get transcribed
- 3z, y, a genes will be transcribed
- 4z, y, a genes will not be translatedOfficial answer
Official answer: option 4 · NTA final answer key
Same idea
Inducer and Repressor Control, in other papers
NEET asked this idea twice, in 2022 and 2026. The other question below.
- 2026 Q153Which of the following statements about lac-operon is correct ?One-line MCQ · Medium
Inducer and Repressor Control: every question and how it was framed
The chapter
Molecular Basis of Inheritance in ten years of NEET
61 questions from 2017–2026, asked in 10 of 10 papers, about 5.8 a paper. Gene Regulation and the lac Operon alone had 7.