Question:
Glycylalanine is a dipeptide formed by the minimum instruction time. It is made up of which amino acids?
Glycylalanine is a dipeptide formed by the minimum instruction time. It is made up of which amino acids?
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In a dipeptide name like glycylalanine, the first part ("glycyl") is the N-terminal amino acid (glycine), and the second part ("alanine") is the C-terminal amino acid.
Updated On: Mar 18, 2026
- \(\text{H}_2\text{NCH}_2\text{COOH} \ \& \ \text{H}_2\text{NCH}(\text{CH}_3)\text{COOH}\)
- \((\text{CH}_3)_2\text{CHCH}(\text{NH}_2)\text{COOH} \ \& \ \text{H}_2\text{NCH}(\text{CH}_3)\text{COOH}\)
- \((\text{CH}_3)_2\text{CHCH}_2\text{CH}(\text{NH}_2)\text{COOH} \ \& \ \text{H}_2\text{NCH}(\text{CH}_3)\text{COOH}\)
- \((\text{CH}_3)_2\text{CHCH}(\text{NH}_2)\text{COOH} \ \& \ (\text{CH}_3)_2\text{CH}(\text{NH}_2)\text{COOH}\)
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The Correct Option is A
Solution and Explanation
Glycylalanine is a dipeptide made of two amino acids. The name indicates glycine ("glycyl") and alanine ("alanine"). Glycine is \(\text{H}_2\text{NCH}_2\text{COOH}\) (side chain is H), and alanine is \(\text{H}_2\text{NCH}(\text{CH}_3)\text{COOH}\) (side chain is \(\text{CH}_3\)). They form glycylalanine: \(\text{H}_2\text{N}-\text{CH}_2-\text{CO}-\text{NH}-\text{CH}(\text{CH}_3)-\text{COOH}\).
Option 1 matches this with glycine and alanine. Other options include valine or leucine, which do not fit.
Thus, the correct answer is option 1.
Option 1 matches this with glycine and alanine. Other options include valine or leucine, which do not fit.
Thus, the correct answer is option 1.
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