ch 23 or 24 - e) Sympatric speciation no actually spatial...

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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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This note was uploaded on 04/17/2008 for the course BIOL 1010 taught by Professor Anafi/quinlan during the Winter '08 term at York University.

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