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NEET 2025
Exam
NEET
Year
2025
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2025 · Zoology · Principles of Inheritance and Variation

Genes R and Y follow independent assortment. If RRYY produce round...

Genes RR and YY 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?Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds,

Options

  1. APhenotypic ratio-1:2:1
  2. BPhenotypic ratio-3:1
  3. CPhenotypic ratio- 9:3:3:19: 3: 3: 1
  4. DPhenotypic ratio-9:7

Correct answer

C. Phenotypic ratio- 9:3:3:19: 3: 3: 1

Step-by-step solution

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 Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds,
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