The process where a population's allele frequencies get altered
by chance, solely due to the sampling error throughout the
generations.
It is a random event taking place into the population genetics
of animals.
Genetic drift can introduce drastic modifications in
populations over a small time period.
There are many factors involved, leading a population toward
genetic drift.
These factors include ;
Random chance
Bottleneck events
Small population
It is a random event that may result in the alleles fixation or
genotypes in populations.
Inbreeding co-efficient and homozygosity is enhanced due to
removal of alleles in genetic drift.
Even though it happens all the time but ,populations which face
regular extinction and recolonization cycles, are the frequent
victims of genetic drift.