A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?
$0.25$
$0$
$0.5$
$0.75$
One of the following is not true to haemophilia
The best example for pleiotropy is
If a normal woman marries a colourblind man, their
Colourblindness is caused due to