Q.28 Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Scurvy is a disease due to deficiency of Vitamin C.

Reason R: Seurvy is characterised by long digits and extensibility of joints.

In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both A and R are correct and R is the correct explanation of A

2. Both A and R are correct but R is NOT the correct explanation of A

3. A is correct but R is not correct

4. A is not correct but R is correct

Scurvy Assertion-Reason: Vitamin C Deficiency vs Joint Symptoms

Scurvy stems from vitamin C deficiency, impairing collagen synthesis and causing bleeding gums, fatigue, and poor wound healing. The reason given mischaracterizes its symptoms, making option 3 correct.​

Correct Answer

3. A is correct but R is not correct. Assertion A accurately identifies scurvy as a vitamin C deficiency disease. Reason R wrongly describes “long digits and extensibility of joints,” which aren’t scurvy features—actual signs include swollen, bleeding gums and joint pain from hemorrhages.

Option Breakdown

Option 1: Both Correct, R Explains A

Incorrect. While A holds true, R fails as scurvy doesn’t feature long digits or hyper-extensible joints (hallmarks of Ehlers-Danlos syndrome).​

Option 2: Both Correct, R Doesn’t Explain A

Wrong. R misstates symptoms; scurvy causes painful, swollen joints from subperiosteal bleeding, not extensible ones or elongated fingers.

Option 3: A Correct, R Incorrect

Right choice. Vitamin C deficiency disrupts collagen hydroxylation, leading to vessel fragility and classic triad: follicular hyperkeratosis, petechiae, gum disease. No skeletal elongation occurs.

Option 4: A Incorrect, R Correct

False. A is factual, and R doesn’t match scurvy—long digits suggest arachnodactyly (Marfan syndrome), not vitamin deficiency.​