Relationship Between Inbreeding and Relationship Coefficients
The value of inbreeding coefficient is always __________ of coefficient of relationship-
- 2 times
- Half — Correct Answer
- Square root
- 4 times
Explanation:
Correct Answer: Half
The Inbreeding Coefficient (Fx) is always half of the Coefficient of Relationship (Rxy).
Fx = ½ × Rxy
Coefficient of Relationship & Inbreeding Coefficient Table
| Mating Type | Rxy | Fx (= ½ Rxy) |
|---|---|---|
| Parent-offspring / Full-sib mating | 0.50 (50%) | 0.25 (25%) |
| Half-sib / Double first cousin | 0.25 (25%) | 0.125 (12.5%) |
| Single first cousin | 0.125 (12.5%) | 0.0625 (6.25%) |
| Half first cousin | 0.0625 (6.25%) | 0.03125 (3.125%) |
Definitions
- Full-sib: Both parents are common
- Half-sib: One parent is common
- Double first cousin: Four grandparents are common
- Single first cousin: Two grandparents are common
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
