Question

Color blindness is a recessive x-linked trait in humans. in a family where the mother is color-blind and the father is normal, the probability of their having a color-blind son is:____.

Answer 1

Color blindness is a recessive x-linked trait in humans. In a family where the mother is color-blind, and the father is normal, the probability of their having a color-blind son is 100%.

Color blindness is a recessive x chromosome liked recessive disease which is more prone in males than in females. As the mother is color-blind she has both the alleles of colorblindness while the father is normal with both x chromosome and y chromosome normal.

So if the parents have a boy, he will always receive an x chromosome with colorblindness gene from the mother and a normal y chromosome from the father always. Thus, the probability of having a colorblind boy will be 100%.

To know more about colorblindness refer to the link below

brainly.com/question/2094919

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