a: genetic drift ~
b: a room with flypaper on all the walls


"Genetic drift is like a room with flypaper on all the walls. The walls represent loss and fixation, and sooner or later (depending upon population size, which in this analogy is directly related to the size of the room)," the fly(the allele frequency), will hit a wall and be stuck.

Writer: Alan R. Templeton
Date: Dec 26 2014 12:18 PM

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