Which is not a Mendelian disorder in man?

If a colour blind woman marries a normal visioned man,their sons will be

$A$ person whose father is colourblind marries a lady whose mother is the daughter of a colourblind man. Their children will be:

Select the correct statement regarding colour blindness.

Hemophilia is a/an.....

Mr. Stevan is suffering from haemophilia and cystic fibrosis. His father is heterozygous for cystic fibrosis. The probability of Stevan's sperm having recessive $X$-linked as well as autosomal allele is