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POPULATION GENETICS (Definition (Population Genetic (study of genetic…

- - - - geographical separation/physical barrier
      - founder effect
      - peripatric
        
        isolation of small population from parent population at periphery
        
        rare genes survive
        
        gene frequency drift
        
        natural selection
      - secondary contact
        
        2 allopatrically distributed population of a species are geographically reunited
    - - new niche
      - mate with those in their own geographic region
    - - same habitat but with different speialization (mating, season, diet, mating behaviour, mating area