NEET UG 2026 · Botany · Question 153
NEET 2026 Botany, question 153
Question 153 of the NEET 2026 paper (re-exam) is a Botany 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 1.
Updated 2026-10-08
Q153 · Botany
Which of the following statements about lac-operon is correct ?
- 1Gene i is constitutively expressedOfficial answer
- 2Lactose activates repressor to bind to the operator
- 3Genes i, z, y and a share single common promoter
- 4Galactose can act as an inducer of lac operon
Official answer: option 1 · 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.
- 2022 Q177In 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…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.