homozygous by descent

ho·mo·zy·gous by de·scent

(hō'mō-zī'gŭs dē-sent'),
Possessing two identical alleles at a given locus that are descended from a single source, as may occur in consanguineous mating.

ho·mo·zy·gous by de·scent

(hō'mō-zī'gŭs dĕ-sent')
Possessing two genes at a given locus that are descended from a single source, as may occur in consanguineous mating.
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