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NEET2010ZoologyPrinciples of Inheritance and VariationActual

Which of the following diseases is also called Christmas disease?

Options

  1. ASickle-cell anaemia
  2. BHaemoglobinuria
  3. CMyocardial infarction
  4. DHaemophilia - B

Correct answer

D. Haemophilia - B

Step-by-step solution

Haemophilia B is due to deficiency of factor IX (Christmas factor). The patient may experience prolonged bleeding following any injury or wound, and in severe cases there is spontaneous bleeding into muscles and joints.

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