Question

Brown eyes are d o m i n a n t over blue eyes in humans. A brown-eyed male marries a blue-eyed female. They have 10 children, all brown-eyed. Can we be certain that the man is h o m o z y g o u s d o m i n a n t? If the 11th child has brown eyes, will that prove the father's genotype is? Explain your reasoning, or show a Punnett Square. (word is spaced out because of brainly's guidelines.)

Answer 1

Answer:

No.

Explanation:

Based on the punnets square (assuming that eye color is a one gene trait in this question) There is a 75% chance they would have a child with brown eyes and a 25% chance that the child would have blue if the father is heterozygous. Theoretically the father could be heterozygous and still have 11 brown eyed kids. This just means that the Dad always passed down his dominant gene.