Chapter 26, Problem 26.26P

Interpretation Introduction

Interpretation:

The number of different tripeptides that can be constructed from the naturally occurring amino acids is to be determined.

Concept introduction:

The primary structure characterizes a polypeptide. There are 20 naturally occurring amino acids that could exist at the first position of the tripeptide. The identity of the amino acid at that position causes no restriction on which amino acids could occupy the second position.