Which of the following abnormalities is due to autosomal dominant mutation?

Which of the following is a genetic disease

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

A normal woman whose father was colourblind. marries a normal man. What kinds of children can be expected and in what proportion?

Haemophilia, a $X$-linked recessive disease is caused due to deficiency of

Select the incorrect statement with regard to haemophilia.