Brown-eyed Alma has a blue-eyed mother and a brown-eyed father. In this case, her brown eyes were determined by a(n) _____ allele.

Question

Quizplus · Accepted Answer

If the mother has blue eyes, she must have two recessive alleles for eye color. Meanwhile, the father has at least one dominant allele for brown eyes, since he expresses brown eyes. Alma inherited one dominant allele from her father and one recessive allele from her mother, resulting in her brown eye color.

Brown-Eyed Alma Has a Blue-Eyed Mother and a Brown-Eyed Father