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

Which of the following is not a genetic disorder?

Given that $X^h$ is the chromosome with the gene for haemophilia and $X$ is the chromosome with the normal gene. Which of the following individuals will act as a carrier for haemophilia?

An affected male marries a normal female. They have three daughters and five sons. All the daughters are affected,and all the sons are normal. The gene for this disease is:

Why are some genetic disorders not eliminated from the gene pool despite being harmful?

Which of the following is not true of haemophilia?