The Four Forces Of Evolution And Natural Selection

The four forces of evolution include mutation, gene flow, genetic drift, and natural selection. Mutation is when there is a change occurs in a gene or chromosome structure which results in a difference in a physical or behavior trait. This trait can be carried into the next generation because the trait is contained in the gene. Gene flow is the process of genes transferring from one population to another. Genes can be transferred to different populations by migration of individuals along with the genetic material that they carry. Genetic drift is a change in the frequency of genetics that a population has which is caused by unexpected events, such as a forest fire, tornado, or other natural disasters. Natural selection is the process in which