Select the incorrect statement with regard to haemophilia.
It is a dominant disease.
A single protein involved in the clotting of blood is affected.
It is a sexlinked disease.
It is a recessive disease.
Most studies on human genetics have been made through
A colour blind man marries the daughter of a colour blind person. Then in their progeny
If a character is always transmitted directly from a father to all his sons and from their sons to all their sons, then which chromosome carries the gene for the character
Haemophilia $A$ is due to the absence of
Given below is a highly simplified representation of the human sex chromosomes from a karyotype.
The genes $a$ and $b$ could be of