One parent is heterozygous for a recessive genetic disorder, and the other parent is homozygous for the dominant allele. determine if their offspring are likely to express the recessive trait. explain

When a trait is recessive, an individual must have two copies of a recessive allele to express the trait. Recessive alleles are denoted by a lowercase letter. Only individuals with an aa genotype will express a recessive trait; therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait.