Described by the Wright-Fisher model, this phenomenon is the primary driver of another process's (*) peripatric variant.
One model of this phenomenon can be used to determine the time of coalescence, and is characterized by a Markov chain with multinomial sampling which inevitably approaches fixation. This phenomenon is the dominant driver of change according to the neutral theory posited by Motoo Kimura. Described by the Wright-Fisher model, this phenomenon is the primary driver of another process's (*) peripatric variant. The effects of this phenomenon can be exacerbated when a small group establishes a new population in the founder effect or by natural disasters due to a population bottleneck. For 10 points, name this evolutionary mechanism where an allele frequency changes due to random sampling.
One model of this phenomenon can be used to determine the time of coalescence, and is characterized by a Markov chain with multinomial sampling which inevitably approaches fixation.
genetic drift [prompt on "drift", "mutation", or "random mutations"]