Inbreeding Coefficients for Different Mating Types
Inbreeding coefficients of progenies produced by selfing, parent–offspring mating, full-sib mating, and half-sib mating during the first generation are respectively:
- 0.5, 0.25, 0.25, 0.125 — Correct Answer
- 0.5, 0.50, 0.50, 0.125
- 0.5, 0.50, 0.25, 0.125
- 0.5, 0.25, 0.50, 0.125
Explanation:
Correct Answer: 0.5, 0.25, 0.25, 0.125
The inbreeding coefficient (Fx) = ½ × Coefficient of Relationship (Rxy).
Inbreeding Coefficients by Mating Type
| Mating Type | Coefficient of Relationship (Rxy) | Inbreeding Coefficient (Fx) |
|---|---|---|
| Selfing | 1.00 (100%) | 0.50 (50%) |
| Parent–offspring mating | 0.50 (50%) | 0.25 (25%) |
| Full-sib mating | 0.50 (50%) | 0.25 (25%) |
| Half-sib mating | 0.25 (25%) | 0.125 (12.5%) |
| Single first cousin mating | 0.125 (12.5%) | 0.0625 (6.25%) |
Note: Parent–offspring mating and full-sib mating have the same Fx (0.25) as they have the same coefficient of relationship (0.50).
📚 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.
