An example of a disease of molecular mutation is

Pick out the correct statements.

$I.$ Haemophilia is a sex-linked recessive disease

$II.$ Down's syndrome is due to aneuploidy

$III.$ Phenylketonuria is an autosomal dominant gene disorder

$IV.$ Phenylketonuria is an autosomal recessive gene disorder

$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder

Sickle cell anaemia is

Haemophilic female marries normal male, the theoretical ratio of their offsprings regarding haemophilia will be

Which is not Mendelian disorder in man?

If a colour blind lady marries a normal man, their children will be