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?

Question

Quizplus · Accepted Answer

Since long arms are a recessive trait, both parents must carry one copy of the recessive allele (heterozygous) to produce a child with long arms.

Assume That Having Long Arms Is a Recessive Genetic Trait