Definitions for "Genetic distance"
a measure of the genetic similarity between any pair of populations. Such distance may be based on phenotypic traits, allele frequencies or DNA sequences. For example, genetic distance between two populations having the same allele frequencies at a particular locus, and based solely on that locus, is zero. The distance for one locus is maximum when the two populations are fixed for different alleles. When allele frequencies are estimated for many loci, the genetic distance is obtained by averaging over these loci. [FAO
( distance) Broadly, any of several measures of the degree of genetic difference between individuals, populations, or species. In reference to molecular evolution, a measure of the number of nucleotide substitutions per nucleotide site between two homologous DNA sequences that have accumulated since the divergence between the sequences.
A quantitative measure of genetic difference between a pair of samples.