A normalvisioned man whose father was colour blind, marries a woman whose father was also colourblind. They have their first child as a daughter. What are the chances that this child would be colour blind ?
$1$
Zero percent
$0.25$
$0.5$
Give differences : Haemophilia and Sickle-cell Anaemia
Colour blindness is caused by a single
A normal woman whose father was colour blind, is married to a normal man. The sons would be
If a colour blind lady marries a normal man, their children will be
A boy is colour blind, in his two sisters one is colour blind and one is carrier $(normal)$. Then who is colour blind in his family