NEET UG · Biology · Molecular Basis of Inheritance

Inducer and Repressor Control

NEET asked Inducer and Repressor Control twice, in 2022 and 2026: 2 of the 1,875 questions in the 10 papers from 2017–2026. It belongs to Gene Regulation and the lac Operon, in Molecular Basis of Inheritance (Biology). The longest wait between two papers asking it was 4 years.

Updated 2026-10-08

Times asked: 2; in 2017–2026
Papers: 2; of 10
First asked: 2022; last in 2026
Chance next paper: 6%; calibrated historical rate

Questions on this idea, by paper

2017–2026. 2022 and 2026.

How NEET framed it

One-line MCQ is the usual form. Skill tested: concept.

Predict outcome of operon mutation
True statement selection on lac operon

Chance asked next paper 6%

Every question

All 2 questions

From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.

2026 Q 153 Which of the following statements about lac-operon is correct ? One-line MCQ \cdot Medium 2022 Q 177 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\dots One-line MCQ \cdot Medium

Papers: NEET 2022, NEET 2026.

Same topic

Other ideas in Gene Regulation and the lac Operon

Gene Regulation and the lac Operon has 4 ideas NEET has asked; 2 of them came up in more than one question.

lac z, y and a Gene Products3× · 2024
Jacob and Monod's Operon Conceptonce · 2018
Structure of the lac Operononce · 2018

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