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Body Fluids And Circulations

Question
CBSEENBI11025061

Assertion : Persons suffering from haemophilia fail to produce blood clotting factor VIII.

Reason : Prothrombin producing platelets in such persons are found in very low concentration

  • If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

  • If both Assertion and Reason are true but the Reason is not the correct explanation of the assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason are false

Solution

C.

If Assertion is true but Reason is false

Haemophilia is an heriditary blood disorder. Haemophilia A is caused by a deficiency of blood clotting factor VIII. It is also known as Classical Haemophilia. Haemophilia B is due to a deficiency of blood clotting factor IX and is also known Factor IX and Christmas disease once the patient has been diagnosed with the disease.

In almost all the cases, females are the carriers of the disease and males suffer from the disease. Queen Victoria was a carrier of haemophilia A. Prothrombin producing platelets in such persons are not found in very low concentration.