]> 2026-04-22T17:27:16+03:00 FishTankGeneticDrift 0 ru This is a genetic drift model that shows how gene frequencies change in a population due to purely random events. The effect of random selection of certain individuals in a population (either through death or through reproduction) and/or the effect of random selection as to which chromosome (from every chromosome pair) end up being sorted into each gamete (sex cells), results in the loss or gains of alleles in the population. Over multiple generations this shift in gene distribution leads to alleles becoming progressively more rare or more common (or disappearing completely) in a population. This effect is called genetic drift. The underlying mechanism of random selection generates different outcomes than in natural selection (where individual traits and genes are selected for the advantages they confer on the survival and reproduction of individuals). In addition to natural selection, however, this random selection and resulting effects of genetic drift is one of the primary mechanisms, which drive evolution. It is also believed to be one of the mechanisms, which contributes to speciation. false 2026-02-28T16:16:46Z 2461100.1783102 FishTankGeneticDrift