http://findarticles.com/p/articles/mi_qa3659/is_200606/ai_n17175649/pg_3

In looking into the Hardy-Weinberg equilibrium, this principle helps explain the frequencies of alleles and genotypes in a population that remains constant from generation to generation. This of course occurs only when certain factors are kept constant. This principle works hand in hand with Mendelian segregation and recombinations of alleles. The five factors include random mating, large population, no gene flow, no mutations, and no natural selection forces. At first glance these factors seem really hard to find on earth, since our planet is constantly changing.

In this article Black, Wise, Wang, and Bittles study the ethnic diversity in the People’s Republic of China. While studying the Hardy- Weinberg equilibrium I noticed that this equation was not so different from that of Nash equilibrium in random cases. Ultimately this equation helps understand the significance of data. The studies included the maternal allelic frequencies. Though throughout history there are numerous cases of invasion and an increase in genetic flow the Han, Hui, Sala, and the Tibetans have common maternal origins as concluded by the high frequency of the D haplogroup. These studies were found to be difficult to make conclusions with. There are consistencies because of the large population, one of the factors needed for the Hardy-Weinberg Equilibrium. Even though some relevancies were found within groups of people they cannot be concluded definite facts as because of the varied deviation.