A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominant to the allele for not having a widow's peak.If two parents do not have widow's peaks, what is the probability that their child will have a widow's peak?(1 point)

Question

Responses

75%
75%

50%
50%

25%
25%

0

Answer 1

If both parents do not have widow's peaks, it means they both have the genotype for not having a widow's peak, which is homozygous recessive (let's represent the allele for widow's peak as "W" for the dominant allele and "w" for the recessive allele). Therefore, both parents would have the genotype "ww".

When two "ww" parents have a child, the only genotype the child can inherit is "ww".

Since "ww" does not have the widow's peak trait, the probability that their child will have a widow's peak is 0%.

So the answer is:

0%