Quote:
Originally posted by Sly@Mar 27 2005, 02:51 AM
Your example of people with sickle-cell anemia are less likely to get malaria, is like saying if you cut off your legs you can't get athelete's foot.
Both sickle-cell anemia and malaria are negative and there's no new information added.
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Quite incorrect. Sickle-cell Anemia is positive if you only have one-half. It makes you immune to Malria :bleh: and besides, Sickle-cell Anemia occurred because of Malaria. The human body adapted, or EVOLVED to cope with the new threat. On the contrary, when your body stops making fingers longer, it just mean that lyphosites are nullifieing the fingers before birth because they are not needed. All genetic matter stays where it is, it just is not used. Mutations DO create new DNA. Ok, lets say you scramble up a whole bunch of subatomic particles (impossible, but lets say). These particles then form into atoms and molecules. The atoms and molecules can be COMPLETELY different from one another even if they are composed of the same things. DNA is exactly the same principle. Ever heard of HIV? The RNA in HIV makes HIV Evolve or mutate at a rapid rate, so that no matter how much we try, we will not isolate all of the strains. This is a beneficial evolution for the species, because it keeps itself alive. HIV has evolved to stop being killed by human scientists. May sound too specialized, but that is exactly what it is. HIV probably does not know that is what it is doing, but by Evolving to behave in the way it does, it achieves that exact purpose.
Ok guys, long post, but please read it. It is important.