Colour blindness is found more in males than | vedclass

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Question

(A) Colour blindness is a recessive sex-linked trait,and the genes responsible for it are located exclusively on the non-homologous segment of the $X$

Vedclass · Accepted Answer

The males containing the single affected $X$ chromosome are colour blind

Vedclass · Answer

(A) Colour blindness is a recessive sex-linked trait,and the genes responsible for it are located exclusively on the non-homologous segment of the $X$ chromosome.Males are hemizygous for the $X$ chromosome $(XY)$,meaning they only require a single affected $X$ chromosome to express the trait.Females,being $XX$,require both $X$ chromosomes to carry the affected gene to express the trait,making them less likely to be affected compared to males.

Colour blindness is found more in males than in females because

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