Mutations

Mutations are defined as the changes in the DNA sequence of a living organism. The mutations occurring in the germ cells, i.e., the egg or sperm cells only are passed on to future generations. These mutations are inherited from the parents and are present in every cell throughout a person’s life. These are the mutations that lead to evolution. The acquired mutations occur during a person’s life and are present only in some cells. These are caused due to environmental factors such as ultraviolet radiation and do not pass on to future generations. They are not a part of evolution.