Genetic variation is the diversity of genes within a population. It's the raw material for evolution, allowing species to adapt and survive. Mutations, changes in DNA sequence, are the primary source of new genetic variations. Sexual reproduction, with its shuffling of genes, further increases variation. Genetic drift, random changes in allele frequencies, and gene flow, the movement of genes between populations, also contribute to genetic diversity. This variation is essential for the survival and evolution of species.
- All Course Editors: Nazrin Kareem