A trait such as milk production is expressed phenotypically only in female animals, although genes influencing it are present in both sexes. This trait is classified as:
Correct answer: B. Sex-limited trait
- A. Sex-linked trait
- B. Sex-limited trait
- C. Sex-influenced trait
- D. Y-linked trait
Explanation
Sex-limited traits are controlled by genes present in both sexes but expressed in only one sex. Sex-linked traits are associated with genes on sex chromosomes, which is a different concept.
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About Animal Breeding and Genetics
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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