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Principles of Inheritance and Variation question

2025 · Q85
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Principles of Inheritance and Variation question

2025 · Q85

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1

Genes RRR and YYY follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?

  1. A
    Phenotypic ratio - 9:3:3:19: 3: 3: 19:3:3:1
  2. B
    Phenotypic ratio - 9:79:79:7
  3. C
    Phenotypic ratio - 1:2:11:2:11:2:1
  4. D
    Phenotypic ratio - 3:13: 13:1
View written solutionFree

Correct answer: A

A classical dihybrid cross performed by Mendel involves.

A cross which was made between a pure round yellow seeded pea plant (RRYY) with wrinkled green seeded plant (rryy). Yellow colour is dominant over green and round seed shape over wrinkled seed shape.

Phenotypic ratio in F2 generation

NEET 2025 Biology - Principles of Inheritance and Variation Question 1 English Explanation
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