1. In humans, the ability to sing well is dominant over the recessive trait of being a terrible
singer. Likewise, the trait to be able to dance is dominant to not being able to dance.
Baby Sean, a Taylor Swift and Joe Alwyn product, was born. Mom is heterozygous for the
ability to sing and she cannot dance. Dad cannot sing, but he can dance (he is
homozygous for the dancing gene). What are the chances that little Sean will be able to
dance and sing?