Please explain experts...,,,..

Dear student,

Normal woman had a colour blind mother, this means she is a carrier. XX^c
Haemophilic man means X^hY

Now a cross between these will be as follows -

	X	X^c
X^h	X^hX	X^hX^c
Y	XY	X^cY

Thus one female is carrier of haemophilia
The other female is carrier of both haemophilia as well as colour blindness
One male is normal
One male is colour blind.

Thus the correct answer is option 2
50% son are colourblind and 50% son are normal.

Regards

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