If a person has one gene influencing blue eyes but actually has brown eyes, blue eyes must be a __________ trait.
A) recessive
B) dominant
C) sex-linked
D) polygenic

Question

Quizplus · Accepted Answer

Blue eyes are a recessive trait, meaning that a person must have two copies of the blue eye gene in order for their eyes to be blue. If a person has one gene for blue eyes but actually has brown eyes, it means that the brown eye gene is dominant and masks the expression of the blue eye gene.

If a Person Has One Gene Influencing Blue Eyes but Actually