Steve Schaffner
Posts: 13
Joined: June 2009
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| Quote (Zachriel @ June 11 2009,20:41) | | Take a look at the distribution of beneficial mutations. |
Looks right to me, given your parameters. You're getting 10 mutations/individual for 100 individuals, or 1000 mutations per generation. Of those, 1/100,000 is beneficial, so you're only getting one beneficial mutation every 100 generations. Those are the tiny blips. Once in a while one or two of them drift up to an appreciable, and the mean number of beneficial alleles per individual climbs above 1.0.
None of them fix though, which is not surprising, since they're almost all effectively neutral. Which means that you should have one fixing by chance every 20,000 generations, plus some probability from the tail at higher selection coefficient.
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