A method to calculate the distance between two sequences that only assumes this process is the Cavalli-Sforza chord measure. 
A method to calculate the distance between two sequences that only assumes this process is the Cavalli-Sforza chord measure. One model of this process that assumes overlapping generations is named for Moran, and is an alternative to the Wright-Fisher model. Kimura's neutral theory states that this process is the cause of evolutionary changes. Examples of this evolutionary mechanism include the founder effect and the bottleneck effect. The causes of micro-evolution include mutations, natural selection, gene flow, and this process, which has an increased impact in small populations. For 10 points, name this random change in the frequency of alleles in a gene pool.
A method to calculate the distance between two sequences that only assumes this process is the Cavalli-Sforza chord measure.
{genetic drift} [or {allelic drift} before mentioned; prompt on "drift"]