NEET UG 2018 · Botany · Question 109
NEET 2018 Botany, question 109
Question 109 of the NEET 2018 paper (code AA) is a Botany question from Molecular Basis of Inheritance. Its idea, Jacob and Monod's Operon Concept, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.
Updated 2026-10-08
Q109 · Botany
Select the correct match :
- 1Matthew Meselson and F. Stahl – Pisum sativum
- 2Alfred Hershey and Martha Chase – TMV
- 3Alec Jeffreys – Streptococcus pneumoniae
- 4Francois Jacob and Jacques Monod – Lac operonOfficial answer
Official answer: option 4 · CBSE official answer key
Same idea
The only question on Jacob and Monod's Operon Concept
No other NEET paper from 2017–2026 tested this exact idea.
Jacob and Monod's Operon Concept: 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.