Widow's Peak, a Pointed Hairline on the Forehead, Is a Genetic

Multiple Choice

Widow's peak, a pointed hairline on the forehead, is a genetic trait caused by a dominant allele. It can be traced back through a family's history using pedigree analysis.
The pedigree shown here is of three generations of a family. Notice that some individuals (shown in gray) have a widow's peak (W = dominant allele and w = recessive allele) .
-Janice's genotype is ________.

A) Ww
B) WW
C) ww
D) WW or Ww