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ch 23 or 24 - e Sympatric speciation – no actually...

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1) Evolution of reproductive isolation a) Chance b) Natural selection – individuals colonizing a new habitat, natural selection will drive traits that are adapting to the new environment. c) Case example of allopatric isolation – preference for mates from same growth medium. d) Reproductive isolation can evolve associated with natural selection processes – from experiment about flies raised on starch medium and maltose raised.
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Unformatted text preview: e) Sympatric speciation – no actually spatial barrier involved. This is fairly common in plants because of polyploidy. f) Auto polyploidy – same species fuse together g) Allopolyploidy – alleles from two different gametes that fuse together. h) Natural selection acts on already genetic variation....
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