If a color-blind man marries a woman who is h | vedclass

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(A) Color blindness is an $X$-linked recessive disorder.Let $X^C$ represent the allele for color blindness and $X$ represent the normal allele.The man

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Sons will be normal,daughters will be carriers.

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(A) Color blindness is an $X$-linked recessive disorder.Let $X^C$ represent the allele for color blindness and $X$ represent the normal allele.The man is color-blind,so his genotype is $X^CY$.The woman is homozygous normal,so her genotype is $XX$.When they cross: $X^CY 	imes XX$.The possible offspring genotypes are $XX^C$ (carrier daughter) and $XY$ (normal son).Therefore,all sons will be normal and all daughters will be carriers of the color blindness gene.

If a color-blind man marries a woman who is homozygous normal for this trait,what will be the genotype of their children?

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