In the octapeptide itpgaaly which amino acid is the amino-terminal residue? tyrosine leucine proline isoleucine

The correct option is: Isoleucine

Explanation:

Peptides are the biological molecules containing amino acids which are linked together by peptide bonds. A polypeptide is a peptide chain in which more than 20 amino acids are linked together by peptide bond.

All polypeptide chains have a N-terminal and a C-terminal.

The N-terminal of a polypeptide is also known as the amino terminal. The N-terminal has a free amine group, which is generally on the left hand side of the polypeptide chain.

Therefore, the N-terminal or the amino terminal of the given polypeptide is Isoleucine (I).

c. is the answer

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