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Friday, 9 October

NEET UG 2021 · Zoology · Question 179

NEET 2021 Zoology, question 179

Question 179 of the NEET 2021 paper (code O1) is a Zoology question from Principles of Inheritance and Variation. Its idea, Monohybrid Punnett Square, was asked twice, both in 2021, across NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q179 · Zoology

In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased ?

  1. 125%Official answer
  2. 2100%
  3. 350%
  4. 475%

Official answer: option 1 · NTA final answer key

Same idea

Monohybrid Punnett Square, in other papers

NEET asked this idea twice, both in 2021. The other question below.

  • 2021 Q125The production of gametes by the parents, formation of zygotes, the F1F_1 and F2F_2 plants, can be understood from a diagram called :One-line MCQ · Easy

Monohybrid Punnett Square: every question and how it was framed

The chapter

Principles of Inheritance and Variation in ten years of NEET

43 questions from 2017–2026, asked in 10 of 10 papers, about 4.1 a paper. Mendelian Inheritance alone had 20.

Principles of Inheritance and Variation: questions per paper

0365’174’185’194’202’216’225’236’243’253’26