Keysha's mother is homozygous for a dominant allele for unattached earlobes and her father is heterozygous for a recessive allele for attached earlobes. Keysha has two siblings. What of the following is a true statement about Keysha and her siblings?

Question

Quizplus · Accepted Answer

Since Keysha's mother has a homozygous dominant allele for unattached earlobes, all her children will inherit one dominant allele for unattached earlobes. Regardless of whether they inherit the dominant or recessive allele from their father, the presence of at least one dominant allele will result in the phenotype for unattached earlobes in all the children.

Keysha's Mother Is Homozygous for a Dominant Allele for Unattached