Chapter 4.3, Problem 11SAQ

Summary Introduction

A change that occurs in the nucleotide sequence of a gene is referred to as a mutation. The mutation leads to the evolution of complex proteins. The mutations affecting the proteins occurs randomly with regards to their effects of the function of proteins. In the protein-coding genes, some of the mutations might affect the sequence of amino acids. Whereas the other mutations might alter the level of protein expression; or time in its development; or the type of cell in which the protein is synthesized.