Sickle cell-anaemia disorder arises due to
Duplication of a segment of $DNA$
Substitution in a single base of $DNA$
Deletion of a segment of $DNA$
Duplication in a base pair of $RNA$
Disorder inherited as Mendel's law of inheritance called
A colourblind man has a colourblind sister but a normal brother than phenotype of its parents is
If a haemophilic man marries a woman carrier (heterozygous) for haemophilia, what would be the possibility that their daughter would be haemophilic
The female children of a haemophilic man and a carrier woman are likely to be
A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind ?