A woman will be colourblind only if . . . . | vedclass

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(A) Colour blindness is an $X$-linked recessive disorder. For a female to be colourblind,she must possess the recessive allele on both of her $X$ chro

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Her mother is carrier and father is colourblind

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(A) Colour blindness is an $X$-linked recessive disorder. For a female to be colourblind,she must possess the recessive allele on both of her $X$ chromosomes. This means she must inherit one mutated $X$ chromosome from her mother and one mutated $X$ chromosome from her father. Therefore,her father must be colourblind $(X^cY)$ and her mother must be either a carrier $(X^cX)$ or colourblind $(X^cX^c)$.

$A$ woman will be colourblind only if . . . . . . .

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