AIIMS 2019 Botany Haemophilia Assertion Reason Question
Assertion: Person 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 reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The assertion is true because individuals with hemophilia do indeed lack sufficient levels of clotting factor VIII, which is crucial for the blood coagulation process. However, the reason is false; prothrombin, which is a precursor to thrombin and not produced by platelets, is synthesized in the liver and is not directly related to the concentration of platelets in hemophilia. Option A is incorrect because the reason does not explain the assertion; option B is incorrect as the reason is false; option D is incorrect since the assertion is true. Understanding the roles of clotting factors and the synthesis of prothrombin is essential in grasping the pathology of hemophilia.
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