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Friday, 9 October

NEET UG 2022 · Zoology · Question 187

NEET 2022 Zoology, question 187

Question 187 of the NEET 2022 paper (code R1) is a Zoology question from Principles of Inheritance and Variation. Its idea, Genetic Mapping Units, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q187 · Zoology

The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome ?

  1. 1a, c, b, dOfficial answer
  2. 2a, d, b, c
  3. 3d, b, a, c
  4. 4a, b, c, d

Official answer: option 1 · NTA final answer key

Same idea

The only question on Genetic Mapping Units

No other NEET paper from 2017–2026 tested this exact idea.

Genetic Mapping Units: 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. Linkage and Recombination alone had 6.

Principles of Inheritance and Variation: questions per paper

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