Judging Value by Offspring Performance
Value of individual judged by mean value of its offspring is-
- Phenotypic value
- Adaptive value
- Breeding value — Correct Answer
- Fitness
Explanation:
Correct Answer: Breeding value
The operational definition of Breeding Value (BV) is the genetic worth of an individual as judged by the mean performance of its progeny relative to the population mean.
Why Progeny-Based Evaluation Defines Breeding Value
- An animal transmits exactly half its genes to each offspring.
- By evaluating many progeny and averaging their performance, random environmental effects cancel out, leaving only the genetic contribution of the parent.
- BV = 2 × (Mean performance of progeny − Population mean)
Key Genetic Values — Comparison
| Value | Based on | Definition |
|---|---|---|
| Breeding Value (BV) | Progeny mean | Judged by mean of offspring; BV = 2 × TA |
| Phenotypic Value (P) | Own measurement | Observed performance of the individual itself |
| Adaptive Value / Fitness (F) | Contribution to next generation | F = 1 − S (S = selection coefficient) |
| Transmitting Ability (TA) | Progeny deviation | Mean deviation of progeny from population mean = BV/2 |
📚 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.
