Friday, May 22, 2020
The Impact of Ancient DNA Discovered in Siberia Essays
The Impact of Ancient DNA Discovered in Siberia For many decades, there has been an overwhelming curiosity about what life was like before humans ruled the earth - back when life on land, off land, and even the very land itself was very different than it is today. Pieces of this puzzle have been discovered all over the world, ranging from perfectly preserved skeletons at the bottom of bodies of water to fragments discovered in vast deserts. Due to the conditions of the ancient finds, there is only so much that can be deciphered about the past, which leads to the creations of various theories of what life was like in different areas and why and when it changed. However, in at least one stretch of land, there is a lotâ⬠¦show more contentâ⬠¦Oddly as it may sound, the origins of these ancient and well preserved samples originated from frozen fecal matter from ancient plant eating animals, such as mammoths (Thomas 2003). The samples themselves consisted of frozen soil, fine rootlets, seeds, and other extremely small and as of yet unidentifiable multi-cellular fragments (Willerslev 2003). All in all, there were 28 families of trees, shrubs, herbs, and mosses within the samples, along with various forms of animal DNA, which provides the reason to believe that these samples came from the fecal remains of various animals (Thomas 2003). In fact, scientists determined the animal DNA belonged to eight different prehistoric and now extinct animals: the woolly mammoth, steppe bison, brown lemming, an unidentified relative to the musk ox as well as the musk ox, and ancient relatives of the horse, reindeer, and hare (Willerslev 2003). To the unlearned person, this research may not seem like anything outstanding, but the scholar and the enthusiast understand the ramifications of such a find. Scientists now have actual DNA from organisms that lived up to 400,000 years ago ââ¬â during a time when even the positioning of the continents was different. This has the potential to put to rest the many debates over what the layout of the land looked like, what kinds of animals survived there, and when and why it all changed. For example, one of the arguments given wasShow MoreRelatedThe Origins Of Our Cities1726 Words à |à 7 Pagesrelationship in the development of these cities. The first cities were developed and formed near bodies of water and fertile areas of the region. For example, I wanted to do some research on the Sumerian civilization around the fertile crescent and how the ancient Sumerian deities, the Anunnaki, played a part in influencing their way of life and their formation of their cities/communit ies. My interest started from my own curiosity of how people from the past all have similar stories of how human civilizationRead MoreAdvancements Of Modern Technology : Ct And Mri2294 Words à |à 10 Pagescase of hominid research, and tracing the lineage of modern humans, mitochondrial DNA was used. The mitochondrial DNA is at an advantage here because it contains far fewer genes and has shorter gene sequences as compared to nuclear DNA. DNA samples from modern humans, apes, and from ancient bones which had not degraded enough to render the DNA useless, were compared. Using knowledge of mutation rates in mitochondrial DNA, scientist were able to estimate a time at which early hominid species lived andRead MoreAdvancements Of Modern Paleontology : A Research Term Paper3470 Words à |à 14 Pagesextinct organisms. In the case of hominid research mitochondrial DNA was used in tracing the lineage of modern humans. In this area mitochondrial DNA is advantageous because it contains far fewe r genes and has shorter gene sequences in comparison to nuclear DNA. Mitochondrial DNA samples from modern humans and apes were compared to DNA of ancient bones which had not degraded enough to render the DNA useless. Mutation rates of mitochondrial DNA have been measured from multiple species and found to be aRead MoreHomo Neanderthalensis- the Neanderthals3667 Words à |à 15 Pagesconsidered a different species than the Homo sapiens and what made them go extinct?â⬠The first Neanderthal remains were discovered in the year of 1856 in Germany. This discovery of a skullcap and partial skeleton in a cave in the Neander Valley (near Dusseldorf) was the first recognized fossil human form (Smithsonian 2007b). This was the first time Neanderthal fossils were discovered, as skulls were unearthed in Engis, Belgium in 1829 and Forbesââ¬â¢ Quarry, Gibraltar in 1848. However; these earlier discoveriesRead MoreArchaeology Notes19985 Words à |à 80 Pagesbone that runs horizontally across the occipital Palaentology, a field that take its name from the Greek words for ââ¬Å"oldâ⬠(paleos) and ââ¬Å"existenceâ⬠(ontos), is devoted to gleaning all the information that can be extracted from the fossils. Paleosol ancient soil Petrifacation the process of turning bone into stone through the absorption minerals from the surrounding soil or ground water that eventually replace the organismââ¬â¢s original inorganic tissues. Phytoliths opaline silica bodies that are secretedRead MoreSexually Transmitted Diseases35655 Words à |à 143 Pagesdiseases 166-176 Birth Control and contraceptives 177-185 Effects on population growth 186-187 Drug and drug abuse 188-191 Manââ¬â¢s impact on the environment 192-199 Reproduction in man 200-201 References 202 Introduction Many people live their lives without having a clue about certain things pertaining to science and its impact on living. They remain dark when it comes on to having an understanding of how the scientific things of this world actually work. This portfolioRead MoreInternational Management67196 Words à |à 269 Pagesmanagement. All new opening World of International Management features written by the authors on current international management challenges; these mini-cases were prepared expressly for this edition and are not available elsewhere. Discussions of the impact of the global economic recession on international management in the opening chapter and throughout the book. New and updated discussions of offshoring and outsourcing and the globalization of human capital (Chapters 1, 2, 3, 14 and throughout casesRead MoreLogical Reasoning189930 Words à |à 760 Pageshaving a good time. Yesterday you drove several hours into the area and parked in the main parking lot. Then you hiked six hours to your present campsite. The three of you carried all your food, water, sleeping bags, and tents. Last night you discovered that somebody had accidentally cracked the large water container. Now you are stuck with no water. Although there is a stream nearby, you wouldnââ¬â¢t normally drink from a stream, and you remember that your packets of water-sterilization tabletsRead MoreExploring Corporate Strategy - Case164366 Words à |à 658 PagesThis led to the appearance of ââ¬Ëgenericââ¬â¢ medicines which have exactly the same active ingredients as the original brand, and compete on price. The dramatic impact of generic entry is illustrated by Allegra, a treatment for hay fever, which lost 84 per cent of US sales in just 12 weeks following patent expiry in 2006. Generics had a major impact on the industry, providing incentives for innovation and a race to market, since the time during which RD costs could be recouped was drastically curtailed
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.