Question

Rahul’s maternal grandfather (mother’s father) was colour-blind. What are the chances of Rahul being colour-blind if his father has normal colour vision?

Answer 1

black is the normal colour vision .this is every human being have a different colour vision like blue, red etc.

because Rahul grand father was colorblind due to myopia.

Answer 2

Explanation:

It can be understood through a graphical representation .

mother's father (XçY)

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mother (XçX) - father (XY)

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rahul can be either (XçY) or. (XY)

so the chances of rahul being color blind are 50-50

if the Xç chromosome of the mother side come then he will be colour blind

and if X chromosome come then he will be normal