Genes located in mitochondrial DNA are usually transmitted to offspring mainly through the:
Correct answer: C. Dam's ovum
- A. Sire's sperm
- B. Both parents equally
- C. Dam's ovum
- D. Male Y chromosome
Explanation
The ovum contributes most of the cytoplasm and mitochondria to the embryo, so mitochondrial genes are usually inherited maternally. This pattern is also called cytoplasmic or maternal inheritance.
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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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