Mechanisms of Evolution

Definition

Mechanisms of evolution are processes that lead to changes in genetic composition within populations over time, leading to diversity and complexity among species. These mechanisms include mutation, gene flow, genetic drift, natural selection, and sexual selection.

Related terms

Mutation:

A change in DNA sequence which can introduce new genetic variation.

Gene Flow:

The transfer of genetic variation from one population to another.

Genetic Drift:

Random changes in allele frequencies within small populations due to chance events.