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Zinaida [17]
3 years ago
9

Color blindness is a recessive trait on the X chromosome. What are the genotype and phenotype ratios of a cross between a normal

female who is not a carrier and a color-blind male?
Biology
1 answer:
NikAS [45]3 years ago
8 0

if we cross XNXN(normal, non-carrier female) with XnY(color-blind male)

we get XNXn XNY XNXn and XNY

genotype ratio:  XNXn:2   XNY:2

phenotype ratio:2 carrier females and 2 healthy males

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