In Regard to the Baby's Colorblindness, a Sex-Linked Recessive Trait

question 4

Multiple Choice

In regard to the baby's colorblindness, a sex-linked recessive trait, you explain that

• A) colorblindness often appears randomly, even if neither parent is colorblind.
• B) the baby's father must have a recessive allele for colorblindness.
• C) since colorblindness is sex-linked, a son can inherit colorblindness if his mother has the recessive colorblindness allele.
• D) the eggs must have been accidentally switched, since males inherit sex-linked traits only from their fathers.

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