NEET UG 2020 · Botany · Question 77
NEET 2020 Botany, question 77
Question 77 of the NEET 2020 paper (code E1) is a Botany question from Molecular Basis of Inheritance. Its idea, Hydrogen Bond Count, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q77 · Botany
Which of the following statements is correct ?
- 1Adenine pairs with thymine through two H-bonds.Official answer
- 2Adenine pairs with thymine through one H-bond.
- 3Adenine pairs with thymine through three H-bonds.
- 4Adenine does not pair with thymine.
Official answer: option 1 · NTA final answer key
Same idea
The only question on Hydrogen Bond Count
No other NEET paper from 2017–2026 tested this exact idea.
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. DNA Double Helix alone had 16.