A colour blind son will born when
Mother is normal and father normal
Mother is colour blind and father normal
Mother is normal and father is colour blind
All the cases are correct
Pattern baldness, moustaches and beard in human males are examples of
Sicklecell anaemia is
The most important example of point mutation is found in a disease called
Haemophilic female marries normal male, the theoretical ratio of their offsprings regarding haemophilia will be
A couple whose sons are colourblind with $AB$ blood group, identify the parents from the following..