Anthropology Essay Example | Topics and Well Written Essays - 500 words - 7

Anthropology - Essay Example Some of the mutations are silent and do not bring chances in the exonic sequence of the DNA, hence they remain silent. In certain cases these silent mutations may be expressed in the next generation or are lost with the individual. Thus, mutation or modifications of genomic sequences affects the expression of the genes in a given population. Equilibrium is observed for every inheritable modification and is studied with the help of Hardy-Weinberg equilibrium. H-W equilibrium provides the basis to analyze the alleles of the gene(s). If no modification occurred, the static allele frequency, crossways generations, remain static. For instance, in the present case, characteristic of the earlobe, either attached or unattached could be studied as the simple case of single locus. The alleles are present on the single locus in two different forms namely; the dominant allele is denoted by E and the recessive by e with frequencies denoted by p and q respectively. Frequency of E freq (E) = p and frequency of e, freq(e)= q. In a given population, under ideal conditions p + q =1 The heterozygotes according to Hardy-Weinberg equilibrium, freq (Aa) = 2pq. According to Hardy-Weinberg equilibrium, p2 + 2pq + q2 = 1 (p is the dominant allele and q is the recessive allele). Punnett square for Hardy-Weinberg equilibrium. Hardy-Weinberg equilibrium explains the genetics of transmission of traits in a population. The equation explains the prevailing frequency of allelic forms of earlobe, attached or unattached and hence the equation is highly