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Post by general313 on Jan 12, 2018 16:30:52 GMT
"No, there isn't mutations are random" Ok Well obviously they must have some mutations in common. It would be quite bizarre that it just so happened to be the case that the one group of fruit flies that can adapt to survive in the dark were the ones picked for the experiment I linked. You must be wrong about that. Regarding dices I never said anything about the exact same results. Mutations are random but environmental stress can increase the mutation rate in Bacteria and Plants (not sure about animals). There's a scientist called James Shapiro who's written books about how genomes evolve , I think he calls it Natural Genetic Engineering. The central thesis is that genome evolution is induced by environmental stress. It seems unlikely that the mutation rate would actually increase. What I suspect is happening is that the environmental stress is increasing the selection pressure, making the "status quo" organisms get lower survivability scores than they would in more normal times, and thus increasing the genetic divergence rate. In risky times, risk taking (risky adaptations) pays off better than in normal times.
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