Question

Haemophilia is a genetic disorder in which

• A. Blood clots in blood vessels
• B. There is delayed coagulation of blood
• C. Blood fails to coagulate
• D. Blood cell count falls

Answer 1

The correct option is B There is delayed coagulation of blood

Haemophilia is an inherited bleeding disorder where the blood doesn't clot properly. It is caused when blood does not have enough clotting factor. A clotting factor is a protein in blood that controls bleeding.
There are two types of haemophilia. Both have the same symptoms.
Haemophilia A is the most common form and is due to having reduced levels of clotting factor VIII (8).

Haemophilia B, also known as Christmas Disease, is caused by having reduced levels of clotting factor IX (9).

So, the correct answer is 'There is delayed coagulation of blood'.