Match List-I with List-II
|
List-I: Name of Amino Acid |
List-II: One letter code |
|
(A) Phenylalanine |
(I) F |
|
(B) Tyrosine |
(II) Y |
|
(C) Asparagine |
(III) N |
|
(D) Arginine |
(IV) R |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
Each amino acid has a three-letter symbol and a one-letter code. Where the first letter of the name is free, it is the code (G for glycine, S for serine). Where two amino acids share a first letter, the others get a different letter, often one that sounds like the name.
(A) Phenylalanine — This matches (I) F. P is taken by proline, so phenylalanine uses F, from the sound “Fenylalanine”.
(B) Tyrosine — This matches (II) Y. T is threonine, so tyrosine uses the second letter of its name, tYrosine.
(C) Asparagine — This matches (III) N. A is alanine (and D is aspartic acid), so asparagine is N, from asparagiNe.
(D) Arginine — This matches (IV) R. A is alanine, so arginine is R, from the sound “aRginine”.
Shortcut: (A)-(I) appears in Options (1) and (3); (B)-(II) then leaves only Option (1).
NCERT (2026-27 edition):
Amino Acids – …
