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Friday, 9 October

NEET UG 2023 · Botany · Question 133

NEET 2023 Botany, question 133

Question 133 of the NEET 2023 paper (code G6) is a Botany question from Principles of Inheritance and Variation. Its idea, Pleiotropy, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q133 · Botany

The phenomenon of pleiotropism refers to

  1. 1more than two genes affecting a single character.
  2. 2presence of several alleles of a single gene controlling a single crossover.
  3. 3presence of two alleles, each of the two genes controlling a single trait.
  4. 4a single gene affecting multiple phenotypic expression.Official answer

Official answer: option 4 · NTA final answer key

Same idea

The only question on Pleiotropy

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

Pleiotropy: 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