NEET UG 2021 · Zoology · Question 171
NEET 2021 Zoology, question 171
Question 171 of the NEET 2021 paper (code O1) is a Zoology question from Cell Cycle and Cell Division. Its idea, Tracking Ploidy and DNA Content, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q171 · Zoology
The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at phase is 8, what would be the number of chromosomes after S phase ?
- 14
- 232
- 38Official answer
- 416
Official answer: option 3 · NTA final answer key
Same idea
The only question on Tracking Ploidy and DNA Content
No other NEET paper from 2017–2026 tested this exact idea.
Tracking Ploidy and DNA Content: every question and how it was framed
The chapter
Cell Cycle and Cell Division in ten years of NEET
32 questions from 2017–2026, asked in 10 of 10 papers, about 3.0 a paper. Mitotic Division alone had 21.