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

question 37

Multiple Choice

Megan has a widow's peak (dominant trait) and attached earlobes (recessive trait) . Megan's dad has a straight hairline and unattached earlobes. If Megan marries a man that is heterozygous for both traits, what is the probability that they will have a child with a widow's peak and attached earlobes?

• A) 1/16
• B) 3/8
• C) 1/4
• D) 1/2
• E) 3/4