Assume That Having Long Arms Is a Recessive Genetic Trait

question 142

Multiple Choice

Assume that having long arms is a recessive genetic trait controlled by a single pair of genes.If a child has long arms, but both the child's biological parents have short arms, what are the parents' genotypes for this trait?

• A)The father is heterozygous and the mother is homozygous.
• B)Both parents are heterozygous.
• C)The mother is heterozygous and the father is homozygous.
• D)Both parents are homozygous.