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pure randomness does not seem like something that can survive in a long evolutionary process. I think this is because you don't quite understand (no offense) the interplay between mutations and natural selection. You should have a look at Understanding Evolution. The overall discussion of mutagenesis I can find focuses entirely on "damage" This is ...


Did you hear about the historical Luria-Delbrück experiment where they demonstrated that in Escherichia coli mutations conferring resistance to antibiotics are essentially random? Also, discussions and some references on the phenomenon of (directed) adaptive mutagenesis, which I think you are asking about, is mentioned in the Wikipedia article. But I don't ...

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