-The figure above shows a pedigree chart for a family,some of whose members exhibit the dominant trait,W.Affected individuals are indicated by a dark square or circle.
What is the likelihood that the offspring of IV-3 and IV-4 will have the trait?

Question

Quizplus · Accepted Answer

Since the trait is dominant, and both IV-3 and IV-4 are unaffected, they must both be carriers (heterozygous) for the trait. When two carriers mate, the likelihood of their offspring exhibiting the dominant trait is 50%.

-The Figure Above Shows a Pedigree Chart for a Family,some