This is a sex-linked inheritance question: If a woman is a carrier for colorblindness has an offspring with a man that has normal vision, can the offspring be a BOY with normal vision?Group of answer choicesYesNoMaybe
Question
This is a sex-linked inheritance question: If a woman is a carrier for colorblindness has an offspring with a man that has normal vision, can the offspring be a BOY with normal vision?Group of answer choicesYesNoMaybe
Solution
Yes, the offspring can be a boy with normal vision. Here's why:
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Colorblindness is a sex-linked recessive trait that is carried on the X chromosome.
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A woman who is a carrier for colorblindness has one X chromosome with the colorblindness gene and one X chromosome without it. This means she has the genotype X^N X^c, where X^N is the normal vision allele and X^c is the colorblindness allele.
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The man with normal vision has the genotype X^N Y, as men have one X and one Y chromosome.
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When they have an offspring, the mother can pass on either her X^N or X^c chromosome, and the father can pass on either his X^N or Y chromosome.
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If the mother passes on her X^N chromosome and the father passes on his Y chromosome, the offspring will be a
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