NEET Biology question

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

(A)Blood platelets
(B)Haemoglobin
(C)A specific clotting factor (Factor VIII or Factor IX)Correct
(D)Vitamin K

Answer: (C)

Solution

Haemophilia is caused by a hereditary deficiency or defect of a specific blood-clotting protein — Factor VIII in haemophilia-A or Factor IX in haemophilia-B — which prevents normal clot formation and leads to prolonged bleeding even from minor injuries, matching option (c); it is

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Question ID VK-119565