Thursday, February 28, 2013

Human Evolution

Shelby Hammett Human Evolution

Abstract An ongoing debate between the theory of evolution and creationism has plagued scientists, creationists, and the general public for decades. There atomic number 18 several(prenominal) ways for each theory to counter the other, as pull in got been debated over the years. By analyseing ancient mtDNA from different species, galore(postnominal) different phylogenic trees spend a penny been constructed as one way of version these issues. Studying mitochondrial DNA has proven useful in illustrating the African origin of our species and relationship between Neanderthals and young humans (e.g. Hagelberg, 2003). Creationists have found some discrepancies in the mtDNA testing, as to say that these phylogenic trees are not completely accurate with possible mutations and contaminations. Mitochondrial DNA is just now inherited matern wholey, leading scientists to coin the term Mitochondrial Eve, as our common ancestor. But as (e.g. Lewin, 1987) states, The problem is that the mitochondrial Eve at 200,000 years ago is just not necessarily the kindred thing as the last common ancestor of all modern humans. Evolution is the changes in allele frequencies within a population over time by means of native selection. Creationism is any theory that rejects evolution to favor a eerie creator of all things.

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Both evolutionists and creationists have used

mitochondrial DNA to test their theories and have found results that make good cases for themselves. MtDNA evolution is difficult and has been undergoing constant repeated analyzing from past to present day. By inspecting almost at whether recombination of mtDNA occurs in humans, discrepancies of whether Neanderthal sequences lie outside that of modern humans, and issues of Mitochondrial Eve it allows the debate to continue. Human and animal lineages built development mtDNAs exhibit a high frequency of homopasies (when a font state is shared by different taxa, and is thought to have arisen by convergence, parallelism, or reversal, rather than...If you want to get a full essay, order it on our website: Orderessay



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