If the gene for blue eyes is recessive and if a child have blue eyes, which of the following must be true?
Correct answer: C. each parent has at least one blue eye gene
- A. both parents have blue eyes
- B. the child's sibling has brown eyes
- C. each parent has at least one blue eye gene
- D. at least one parent must have blue eyesHire Local Nannies
Explanation
A child with blue eyes must have two recessive blue-eye alleles, receiving one from each parent. Therefore, each parent must carry at least one blue-eye gene, even if a parent has brown eyes.
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