NEET UG 2022 · Botany · Question 132
NEET 2022 Botany, question 132
Question 132 of the NEET 2022 paper (code R1) is a Botany question from Plant Growth and Development. Its idea, Ethylene in Root Growth and Root Hairs, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q132 · Botany
The gaseous plant growth regulator is used in plants to :
- 1kill dicotyledonous weeds in the fields
- 2speed up the malting process
- 3promote root growth and roothair formation to increase the absorption surfaceOfficial answer
- 4help overcome apical dominance
Official answer: option 3 · NTA final answer key
Same idea
The only question on Ethylene in Root Growth and Root Hairs
No other NEET paper from 2017–2026 tested this exact idea.
Ethylene in Root Growth and Root Hairs: every question and how it was framed
The chapter
Plant Growth and Development in ten years of NEET
23 questions from 2017–2026, asked in 9 of 10 papers, about 2.2 a paper. Plant Growth Regulators alone had 15.