A trait has a heritability of 0.25 and the selection differential is 4 units. Using the breeder's equation, what response to selection is expected?
Correct answer: B. 1 unit
- A. 0.5 units
- B. 1 unit
- C. 4 units
- D. 16 units
Explanation
The response is calculated as R = h² × S. Therefore, R = 0.25 × 4 = 1 unit, assuming the heritability and selection differential are measured on the same scale.
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Covers genes, chromosomes, inheritance, genetic variation, mutations, heritability and quantitative traits in livestock. It also includes selection methods, breeding systems, inbreeding, crossbreeding, heterosis and evaluation of traits such as growth, milk yield, fertility and disease resistance.
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