A pointed frontal hairline is popularly referred to as widow’s peak. It is inherited as an autosomal dominant trait. Consider the following situation. 25% 50% 75% 100%

In humans, the allele for widow's peak hairline (W) is dominant to the allele for straight hairline (w). If a heterozygous person with a widow's peak marries someone with a straight hairline, what is the probability that their child will have a straight hairline?*1 point25%50%0%75%

Since humans can inherit a widow’s peak hairline or a straight hairline, the trait for hairline shape is an example of aaheritable characteristic with discrete variation bheritable characteristic with continuous variationcnon-heritable characteristic with discrete variation dnon-heritable characteristic with continuous variation

Hair texture is an incomplete dominant trait.  Curly hair (HH) and straight hair (H'H') make wavy hair (HH').  Cross a wavy and a straight haired parent and list the phenotypic ratio of the offspring.

Hair texture is an incomplete dominant trait.  Curly hair (HH) and straight hair (H'H') make wavy hair (HH').  Cross a wavy and a straight haired parent and list the phenotypic ratio of the offspring.Phenotypic ratio is:       Wavy            Straight

In the pedigree on the left, an individual expressing a certain trait is born to two individuals who lack the trait.This would strongly suggest that the trait is:dominant, because it was strong enough to be expressed even though neither of the parents has itrecessive, because if it was dominant then one or both of the parents would have iteither dominant or recessive – both are equally likely