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JIPMER 2014
Exam
JIPMER
Year
2014
Subject
Zoology
Chapter
Principles of Inheritance and Variation

JIPMER 2014 · Zoology · Principles of Inheritance and Variation

The dominant epistasis ratio is

The dominant epistasis ratio is

Options

  1. A9:3:3:19: 3: 3: 1
  2. B12:3:112: 3: 1
  3. C9:3:49: 3: 4
  4. D9:6:19: 6: 1

Correct answer

B. 12:3:112: 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 F2\mathrm{F}_2 ratio as 12:3:1.
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