NEET UG 2021 · Botany · Question 145
NEET 2021 Botany, question 145
Question 145 of the NEET 2021 paper (code O1) is a Botany question from Biological Classification. Its idea, Plasmogamy and Karyogamy, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q145 · Botany
Which of the following statements is correct ?
- 1Organisms that depend on living plants are called saprophytes.
- 2Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.
- 3Fusion of two cells is called Karyogamy.
- 4Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy.Official answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Plasmogamy and Karyogamy
No other NEET paper from 2017–2026 tested this exact idea.
Plasmogamy and Karyogamy: every question and how it was framed
The chapter
Biological Classification in ten years of NEET
26 questions from 2017–2026, asked in 9 of 10 papers, about 2.5 a paper. Kingdom Fungi alone had 9.