Allele Frequency
In a population, the percentage of the genes for a trait that are for a particular allele
Emigration
Individuals leaving a population
Genetic Drift
Caused by a small population and random chance
Genetic Equilibrium
The allele frequency and the genotype frequency remains the same from generation to generation.
Genotype Frequency
In a population, the percentage of the individuals which have a particular genotype (combination of alleles)