Hardy-Weinberg Theorem to Evolution
The Hardy–Weinberg principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. What these two scientist determined was that in a given species, no evolution can occur if a defined set of parameters are met. What they also found out that evolution will occur over time in a given species if any of the parameters stated above are not met. An example, one of the parameters for no evolution is the fact that mating is totally random. If a species does not have random mating, but instead has a mating process based upon some other variable, that variable will influence the evolution of the species.