Predict the possibility of an offspring with a widow's peak,a dominant inherited trait affecting the hairline,when both parents are heterozygous for the trait.
A)0% of the offspring will have a widow's peak.
B)75% of the offspring will have a widow's peak.
C)25% of the offspring will have a widow's peak.
D)100% of the offspring will have a widow's peak.

Question

Quizplus · Accepted Answer

When both parents are heterozygous for a dominant trait, the Punnett square shows that 75% of the offspring will express the dominant trait (widow's peak in this case), and 25% will express the recessive trait (no widow's peak).

Predict the Possibility of an Offspring with a Widow's Peak,a