A man with normal vision whose father was colourblind marries with women whose father was also colourblind. Suppose their first child is daughter then what are the chances of this child to be colourblind?
$100\, \%$
$25 \,\%$
$50\, \%$
$0 \,\%$
Given below is a highly simplified representation of the human sex chromosomes from a karyotype. The gene $'a'$ and $'b'$ could be of
A son of a colourblind father and normal homozygous mother marries to a daughter of normal father and heterozygous mother than their children will be
Haemophilia is example of
Colour blindness in man is
One of the following is not true to haemophilia