Incorrect statement with regard to haemophilia is?
A
A single protein involved in clotting of blood is affected
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B
It is sex-linked disease
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C
It is a recessive disease
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D
It is a dominant disease
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Solution
The correct option is D It is a dominant disease
Haemophilia is a bleeding disorder, usually inherited with an X-linked recessive inheritance pattern, which results from the deficiency of a coagulation factor. Haemophilia A results from the deficiency of clotting factor VIII. Haemophilia B results from the deficiency of clotting factor IX.
So, the correct answer is 'It is a dominant disease'.