If both parents are carriers for thalassaemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
$0.25$
$1$
No chance
$0.5$
Colour blindness is
Person whose father is colourblind marries a lady whose mother is daughter of a colourblind man. Their children will be
If a boy's father has haemophilia and his mother has one gene for haemophilia; what is the chance that the boy will inherit the disease
One of the following is not true to haemophilia
Given below is pedigree chart showing the inheritance of a certain trait in human. Select the correct option for the given chart