Genetic Variation

Definition

Genetic variation refers to differences in the genetic makeup among individuals within a population or species due to mutation, gene flow, sexual reproduction etc., which is essential for evolution by natural selection.

Related terms

Mutation:

A change in the DNA sequence that can introduce new genetic variation.

Gene Flow:

The transfer of genes from one population to another, increasing genetic variation in the receiving population.

Sexual Reproduction:

The process by which offspring are produced from two parents, contributing to genetic variation through recombination and segregation of genes.