NEET UG 2023 · Botany · Question 139
NEET 2023 Botany, question 139
Question 139 of the NEET 2023 paper (code G6) is a Botany question from Mineral Nutrition. Its idea, Zinc in Auxin Synthesis, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q139 · Botany
Match List I with List II :
| List I | List II |
|---|---|
| A. Iron | I. Synthesis of auxin |
| B. Zinc | II. Component of nitrate reductase |
| C. Boron | III. Activator of catalase |
| D. Molybdenum | IV. Cell elongation and differentiation |
Choose the correct answer from the options given below :
- 1A-II, B-IV, C-I, D-III
- 2A-III, B-II, C-I, D-IV
- 3A-II, B-III, C-IV, D-I
- 4A-III, B-I, C-IV, D-IIOfficial answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Zinc in Auxin Synthesis
No other NEET paper from 2017–2026 tested this exact idea.
Zinc in Auxin Synthesis: every question and how it was framed
The chapter
Mineral Nutrition in ten years of NEET
12 questions from 2017–2026, asked in 8 of 10 papers, about 1.1 a paper. Mineral Nutrition alone had 6.