Olya always wanted to have a dimple on her chin, like her mother’s (dominant feature (A)). But she doesn’t have a dimple

Olya always wanted to have a dimple on her chin, like her mother’s (dominant feature (A)). But she doesn’t have a dimple on her chin like her dad. Determine the genotypes of family members for the indicated trait.

Because the daughter (Olya) does not have a dimple on her chin (aa), but the mother does – so the mother is heterozygous (Aa) by trait.
Answer: Mother – Aa, father – aa, daughter – aa

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