Chemistry - Biomolecules Question with Solution | TestHub

Explanation:

The question asks for the correct sequence of amino acids in the given structural representation of the tripeptide.

Concept:

This question is based on the identification of amino acids in tripeptide.

Solution:

A tripeptide is formed by linking amino acids through $-\mathrm{CO}-\mathrm{NH}-$ peptide bonds. The given tripeptide is the correct linear representation of Ala-Phe-Gly. In peptide naming, the sequence starts from the N-terminal (free - NH2 group) to the C-terminal (free -COOH group).

Final Answer: Option (A)