Saturday, November 23, 2013

Evolution

6. Why Sex? Robert Vrijenhoek, from Monterey Bay Aquarium Research Institute, and his students were on a mission to find out why male topminnows were needed if the female topminnows bay window chuck agamously by making identical copies of themselves and also to find out why is sex needed. Robert Vrijenhoek and his students conducted a test in one of Mexicos ponds where they found topminnows that were touched by a parasite that causes opprobrious spot disease. According to the video Why Sex? the slice concluded that although both sexual and sexless reproducing minnows subsistd in the identical pond the asexual minnows appeared to be parasitized more than the sexual reproducing minnows. later on analyzing the asexual minnows in detail they quickly realized that the asexual minnows had stopped evolving because they were exact copies of their mothers; their genetic information was the same it did non sprout or adapt to the parasites that were in the pond divergence them to be easily bear upon by the parasitic disease.
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growing is a race, it does not stop, therefore we have to detect evolving in lodge to stay in the same place and later on necessitateing the sexual minnows they realized that sex generates gene variation means that sex is important in order to keep a race alive and evolving which is why the asexual minnows were impact lots more easily than the sexual minnows. In ratiocination Robert and his students sight that the reason for male minnows and sex is so that they can reproduce new combinations of genes so that their race can live to live in the same environment. According to the article create verbally by Curtis, Craddock, a nd Vrijenhoek the Red Queen guesswork predi! ction for the believe was that the more common clone would be the population that would be much more infected than the coexisting sexual populations. This guessing means that the asexual reproducing organisms will be the most affected by the infectious black spot disease because since they solely replicate...If you want to get a full essay, order it on our website: OrderEssay.net

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