7
RCMultiple Choice

Unit Test — Cumulative exam

Question 7 • IL-Science 7 A

Brown eye color is a dominant trait and blue eye color is a recessive trait.What typically happens when someone inherits one allele for brown eyes and one for blue eyes?

Answer
A
The person has brown eyes, and brown eye color remains a dominant trait.
B
The person has blue eyes, but brown eye color remains a dominant trait.
C
The person has brown eyes, but blue eye color becomes a dominant trait.
D
The person has blue eyes, and blue eye color becomes a dominant trait.

Explanation

A dominant allele typically determines the visible trait when paired with a recessive allele. So someone with one brown-eye allele and one blue-eye allele typically has brown eyes; the blue-eye allele is still recessive. The correct choice is “The person has brown eyes, and brown eye color remains a dominant trait.”

AI-written and checked against the verified answer.

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