DNA Mutations: What Are They?

Since the advent of life on Earth, the struggle for survival is the driving force of all biology. We have established the problems associated with maintaining complexity and various ways organisms regulate their responses to the environment. These developments are a result of the process we call evolution. It is time to describe exactly how evolution occurs. We know it is the result of cumulative changes in the characteristics in an organism. This is explained by differences in protein formation. However, we also know that DNA is the ultimate unit of life. DNA is the molecule that seeks to replicate and codes for proteins. Thus, this must be the level at which evolution takes place. It does this through a unique process: DNA mutation.