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JIPMER2014ZoologyPrinciples of Inheritance and Variation

The dominant epistasis ratio is

Options

  1. A9: 3: 3: 1
  2. B12: 3: 1
  3. C9: 3: 4
  4. D9: 6: 1

Correct answer

B. 12: 3: 1

Step-by-step solution

In dominant epistatis, a dominant gene (epistatic) marks the expression of another dominant or recessive gene (hypostatic), such interactions give the modified F ₂ ratio as 12:3:1.

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