Megan has a widow's peak (dominant trait) and attached earlobes (recessive trait). Megan's dad has a straight hairline and unattached earlobes. What is Megan's genotype?
A) WWEE
B) WwEE
C) wwee
D) WwEe
E) Wwee

Question

Quizplus · Accepted Answer

Megan has a widow's peak, indicating she has at least one dominant allele (W) for that trait, and attached earlobes, indicating she has two recessive alleles (ee) for that trait. Since her dad has a straight hairline (ww), Megan must be heterozygous (Ww) for the widow's peak trait. Therefore, her genotype is Wwee.

Megan Has a Widow's Peak (Dominant Trait) and Attached Earlobes