Essay about The Effects Of Different Evolutionary Forces On A Population

1403 Words Oct 3rd, 2016 6 Pages
Introduction This experiment was performed to test the effects of different evolutionary forces on a population that would normally be in Hardy-Weinberg equilibrium. These three forces being tested will be tested individually, in pairs, and finally all three together. Hardy-Weinberg Equilibrium is the theory that a single gene in a population of diploid organisms will not change in allele proportions over generations as long as certain conditions are met. “Another generation of random mating led by direct calculation to the same proportions among the offspring and ‘We thus obtain the same distribution of pure types and hybrids for each generation under panmixia’ (Weinberg 1908). Weinberg then uses his result to work out the numbers of the two phenotypes to be expected among the relatives of an individual of known phenotype, but this does not now concern us. Rather, he has established the ‘Hardy–Weinberg law’ in the most obvious and direct manner,(Edwards)” explains that by meeting the correct conditions a population can have the same genotype proportions from one generation to the next. These conditions include: random mating regarding the gene in question, a large or infinite population size, no migration between the observed population and other populations, no mutation on the gene in question, and no selection based on the gene in question. When these conditions are met the population is said to be in Hardy-Weinberg equilibrium, but most populations do not meet these…

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