Fixation is the change in a gene pool from a situation where there exists at least two alleles in a given population to a situation where only one of the alleles remains or rises to 100% frequency (the allele becomes fixed).
Fixation is the change in a gene pool from a situation where there exists at least two alleles in a given population to a situation where only one of the alleles remains or rises to 100% frequency (the allele becomes fixed).