Severe Form of Inbreeding in Animals
Severe form of inbreeding in animals is-
- Self Fertilization
- Parent-offspring mating — Correct Answer
- Full-sib mating
- Half-sib mating
Explanation:
Correct Answer: Self Fertilization
Self-fertilization is the most severe (most intense) form of inbreeding as the same individual is both father and mother, resulting in maximum increase in homozygosity per generation.
Types of Inbreeding — Intensity Comparison
| Mating Type | Inbreeding Coefficient (Fx) | Intensity |
|---|---|---|
| Self fertilization | 0.50 (50%) | Most severe |
| Parent-offspring / Full-sib mating | 0.25 (25%) | Close breeding (severe) |
| Half-sib / Grand parent-grandchild | 0.125 (12.5%) | Line breeding |
| Single first cousin mating | 0.0625 (6.25%) | Mild |
| Half first cousin mating | 0.03125 (3.125%) | Least |
Types of Inbreeding
- Close breeding: More intensive form (parent-offspring, full-sib mating)
- Line breeding: Less intensive form (half-sib, cousin, grandparent-grandchild)
- Inbred line: minimum Fx = 0.375 (37.5%) — developed from 2 generations of full-sib mating
📚 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.
