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Bio (Genetic Variation (Selective Pressure (Natural selection, Artificial…

- - - - Decrease in gene flow
    - - Genetic Drift
        
        Random change in allele frequency, rather than selective pressures
  - - - Heterozygous
        
        codominant
        
        incomplete dominance
        
        multiple alleles
        
        complete dominance
    - - Linked genes
  - - - Crosssing over
      - independent assortment
        
        2^23 possible combinations of gametes (without crossing over)
        
        Cannot function with linked genes
      - Segregation
    - - Create new alleles
      - Often harmful, but these are mostly removed by