Question:
Study the following list: I. Lys, II. Gln, III. Ser, IV. Cys, V. Tyr, VI. Asn. X is the set of amino acids containing -OH group and Y is the set of amino acids containing -CONH$_2$ group. What are X and Y respectively?
Study the following list: I. Lys, II. Gln, III. Ser, IV. Cys, V. Tyr, VI. Asn. X is the set of amino acids containing -OH group and Y is the set of amino acids containing -CONH$_2$ group. What are X and Y respectively?
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Serine/Tyrosine contain -OH; Glutamine/Asparagine contain -CONH$_2$.
Updated On: Jun 6, 2026
- III, IV; II, V
- III, IV; I, II
- III, V; I, VI
- III, V; II, VI
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Amino acid side chain functional groups.
Step 2: Meaning
Ser (III) and Tyr (V) have -OH groups. Gln (II) and Asn (VI) have -CONH$_2$ groups.
Step 3: Analysis
X = III, V. Y = II, VI.
Step 4: Conclusion
X is III, V and Y is II, VI.
Final Answer: (D)
Amino acid side chain functional groups.
Step 2: Meaning
Ser (III) and Tyr (V) have -OH groups. Gln (II) and Asn (VI) have -CONH$_2$ groups.
Step 3: Analysis
X = III, V. Y = II, VI.
Step 4: Conclusion
X is III, V and Y is II, VI.
Final Answer: (D)
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