Match the LIST-I with LIST-II.
| LIST-I Vitamin / Amino acid | LIST-II Deficiency disease / amino acid code |
| A. Vitamin B12 | I. N |
| B. Vitamin B6 | II. Pernicious anaemia |
| C. Aspartic acid | III. D |
| D. Asparagine | IV. Convulsions |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A – II, B – IV, C – III, D – I
This list mixes two kinds of facts: the deficiency diseases of vitamins, and the one-letter codes of amino acids. When the first letter of an amino acid’s name is already taken, another letter is used: Aspartic acid is D and asparagine is N (similarly glutamic acid is E and glutamine is Q).
A. Vitamin B12 — This matches II. Pernicious anaemia. Vitamin B12 (cyanocobalamin, a cobalt complex) is needed to form red blood cells; its lack causes pernicious anaemia.
B. Vitamin B6 — This matches IV. Convulsions. Vitamin B6 (pyridoxine) deficiency causes convulsions.
C. Aspartic acid — This matches III. D. Its three-letter code is Asp and its one-letter code is D.
D. Asparagine — This matches I. N. Its three-letter code is Asn and its one-letter code is N.
Shortcut: The pair A–II appears in Options (2) and (3), and C–III then leaves only Option (3).
NCERT (2026-27 edition):
Classification of Vitamins – …
Amino Acids – …
