If two parents have black hair, a dominant phenotype, and one of their offspring has blond hair, a recessive phenotype, which would be a true statement about the parents’ genotypes?(1 point)
Responses
Both parents are homozygous for the trait.
Both parents are homozygous for the trait.
Both parents are heterozygous for the trait.
Both parents are heterozygous for the trait.
Only one parent is heterozygous.
Only one parent is heterozygous.
Only one parent is homozygous.
Only one parent is homozygous.
Only one parent is heterozygous.
In this scenario, we can determine the genotypes of the parents based on the hair color of their offspring. We know that black hair is a dominant phenotype and blond hair is a recessive phenotype.
If both parents have black hair and their offspring has blond hair, it means that both parents must carry the recessive allele for blond hair. This indicates that both parents are heterozygous for the trait. Therefore, the correct answer is:
Both parents are heterozygous for the trait.