Chapter 21, Problem 21.63E

Interpretation Introduction

Interpretation:

The reason why an individual is fortunate that the genetic code does not have only the required $20$ amino acid codons and $44$ stop signals is to be stated.

Concept introduction:

A DNA is a type of nucleic acid and stands for deoxyribonucleic acid. It is found primarily in nuclei of the cells and is present in the form of long-chain polymers. It has a double helix structure in which the nucleotides are joined together by phosphate groups that join the $5\text{'}$ carbon of one nucleotide to the $3\text{'}$ carbon of the other nucleotide.