The sons of a colour blind woman are always colourblind but not the daughters because :

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Admin · Accepted Answer

the colour-blindness gene is a recessive gene borne on the X chromosome and the sons inherit it only from mother but daughters inherit it both from father as well as mother

Admin · Answer

the gene for colour-blindness inherited from mother is dominant over the normal gene from father

Admin · Answer

the female hormone in girls does not allow the expression of the colour-blindness gene in daughters.

Admin · Answer

the gene for colour-blindness is recessive gene inherited by sons only from mother and the daughters inherit it only from father.

Q. The sons of a colour blind woman are always colourblind but not the daughters because :

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