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Reply #5: It's actually not necessary to understand [View All]

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Autonomy Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-11-05 10:33 AM
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5. It's actually not necessary to understand
the causes underlying the process to know the process exists. But it's a good scientific question as far as digging deeper is concerned. The standard model now posits that all genetic changes in a population over time are caused by random mutations. The mutation is, by chance, better adapted to survival in that species. Of course "by chance" is an anecdotal view, and on the level of a population it's a probability issue. Some individual in a large population over a long period will most likely randomly develop a mutation that is adaptive.
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