A couple has sons who are colourblind with AB | vedclass

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(A) Colour blindness is a recessive sex-linked trait carried on the $X$-chromosome. In males, a single recessive gene $(X^c Y)$ is sufficient for expr

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Mother colourblind with $A$ blood group, and father normal with blood group-$B$.

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(A) Colour blindness is a recessive sex-linked trait carried on the $X$-chromosome. In males, a single recessive gene $(X^c Y)$ is sufficient for expression, while females require two recessive genes $(X^c X^c)$.To have sons with $AB$ blood group and colour blindness, the mother must contribute an $X^c$ chromosome and an $I^A$ allele, while the father must contribute a $Y$ chromosome and an $I^B$ allele.Based on the provided cross:Parents: Mother $(X^c X^c I^A I^A)$ $	imes$ Father $(X Y I^B I^B)$Gametes: Mother $(X^c I^A)$, Father $(X I^B, Y I^B)$Offspring: $X^c X I^A I^B$ (Daughter, carrier, $AB$ blood group) and $X^c Y I^A I^B$ (Son, colourblind, $AB$ blood group).Thus, the mother is colourblind with blood group $A$ and the father is normal with blood group $B$.

$A$ couple has sons who are colourblind with $AB$ blood group. Identify the parents from the following.

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