Applications of Inbreeding
Which of the following is /are application(s) of inbreeding-
- Help to eliminate the undesirable genes
- It is used to develop inbred lines as a seed stock
- It increases the prepotency of animal
- All are correct — Correct Answer
Explanation:
Correct Answer: All are correct
Despite its risks, inbreeding is strategically employed in animal breeding programs for three main purposes — all listed are correct.
Applications of Inbreeding
| Application | Mechanism | Used In |
|---|---|---|
| Eliminate undesirable recessive genes | Inbreeding forces hidden recessive alleles to homozygosity where they are expressed and can be identified and culled from the population | All species — genetic clean-up |
| Develop inbred lines as seed stock | Repeated inbreeding creates homozygous, genetically uniform lines that 'nick' well when crossed to produce heterosis in commercial progeny | Pigs and Poultry commercially; CNBS used |
| Increases prepotency | Highly homozygous (inbred) animals pass their traits consistently to all offspring — uniformity of progeny increases | Sire selection for breed type |
Inbred Line — Definition
- Developed from two generations of full-sib mating
- Minimum inbreeding coefficient to be called an inbred line = 0.375 (37.5%)
- Inbred lines are primarily used in pigs and poultry for commercial production of hybrid stock
📚 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.
