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Kwan_Isabel_MM9 (Non-Mendelian Genetics (Males hemizygosity for sex-linked…

- - - - Complete Dominance
        
        Complete dominance
        A situation where the dominant allele completely masks the effect of the recessive allele in the heterozygous state. If the red allele (R) is dominant over white (r), heterozygotes (Rr) will turn out red.
      - Incomplete Dominance
        
        A situation where both alleles are expressed, but unequally so that a blended phenotype is produced. The heterozygotes are pink, a blend of red and white.
      - Codominance
        
        A situation where both alleles are equally expressed in the heterozygous state.
        The heterozygotes have both red and white colors.
  - - - genes on different chromosomes are unlinked and will always sort independently
      - genes on the same chromosome are linked and will only sort independently when crossover causes a chromosomal break between them
      - the frequency of linked genes sorting independently varies directly with the chromosomal distance between them