VITEEE 2009 Paper

Tripeptides are amino acids polymers in which three individual amino acid units, called residues, are linked together by amide bonds.
glycine (NH2−CH2−COOH), alanine (CH3−

C

┃ NH2

H−COOH) and phenyl alanine (C6H5−CH2−

C

┃ NH2

H‌COOH) can be linked in six different ways.