genvariasjon
Genvariasjon, also known as genetic variation, refers to the differences in DNA sequences among individuals within a population. This variation is the raw material for evolution, providing the diversity upon which natural selection can act. It arises from several mechanisms, primarily mutations and recombination. Mutations are permanent alterations in the DNA sequence, which can occur spontaneously or be induced by environmental factors. Recombination, a process occurring during sexual reproduction, shuffles existing genetic variations to create new combinations.
The prevalence and distribution of genetic variation within a population are influenced by factors such as
Understanding genvariasjon is crucial in many fields, including evolutionary biology, conservation genetics, and medicine. In conservation,