A haemophilic woman marries a normal man, then
All the children will be normal
All the sons will be haemophilic
All the girls will be haemophilic
Half girls will be haemophilic
The most important example of point mutation is found in a disease called
Thalassaemia is
A girl of normal vision whose father was colourblind marries a man of normal vision whose father was also colourblind. Their sons would be (of total number of $sons$)
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?
If a colour blind lady marries a normal man, their children will be