Genetic drift, yes. OK, that's logical. Not empirically established, but logical.
It is empirically established in the
Wright-Fisher model and the
Hardy-Weinberg principle. Genetic drift is an unavoidable consequence of random mating as the math demonstrates.
Exactly, thank you. It doesn't have to be empirically demonstrated, it's defined into existence, it's assumed.
If generation 100 has a different DNA sequence than generation 1 where in the world do you think those differences in DNA came from? Magic?
ABE: The analogy that is often used for genetic drift is surnames. After many generations an isolated village will tend to have just a few surnames even if the village started with many surnames. This is due to (nearly) random mating. Some lineages will necessarily disappear while others become more prominent by randomness alone.
Edited by Taq, : No reason given.
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