Katlin's aunt has green eyes and her cousin has blue eyes. Which eye color is Katlin more likely to demonstrate?

Question

Quizplus · Accepted Answer

Eye color is a polygenic trait, meaning that it is determined by multiple genes. In this case, Katlin's aunt has green eyes, which means that she has two copies of the green eye allele. Katlin's cousin has blue eyes, which means that he has two copies of the blue eye allele. Katlin is more likely to have green eyes because she has one copy of the green eye allele from her aunt and one copy of the blue eye allele from her cousin.

Katlin's Aunt Has Green Eyes and Her Cousin Has Blue