UPSC CSE Prelims
Question 80
Consider the following pairs:
| Vitamin | Deficiency disease |
|---|---|
| 1. Vitamin C | Scurvy |
| 2. Vitamin D | Rickets |
| 3. Vitamin E | Night blindness |
Which of the pairs given above is/are correctly matched?
View correct answer and explanation
Correct answer: A
Correct Option: A
Explanation: Vitamin C deficiency causes scurvy and vitamin D deficiency causes rickets; night blindness is associated with vitamin A deficiency, not vitamin E.
Statement/Pair-wise Analysis:
Pair 1: Correct - Inadequate vitamin C impairs collagen synthesis and causes scurvy.
Pair 2: Correct - Vitamin D deficiency reduces calcium absorption and can cause childhood rickets.
Pair 3: Incorrect - Night blindness results principally from vitamin A deficiency, not vitamin E.
Option-wise Analysis:
A: Correct - includes all and only the correct items.
B: Incorrect - includes incorrect pair 3; omits correct pairs 1, 2.
C: Incorrect - includes incorrect pair 3.
D: Incorrect - omits correct pairs 1, 2.