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Genetics (other aspects of inheritance (multiple sets of chromosomes &…

- - - - parental generation parents
        
        homozygous each parent has 2 identical alleles for this gene
      - F1/first filial generation offspring of crossbreeding
        
        heterozygous two different alleles for this gene
      - F2 generation interbreed
        
        incomplete dominance neither parental trait dominates the other
    - - selfing a plant's own pollen is used to fertilize its own eggs
      - Punnett square proportion of gametes
    - - dominant a trait whose phenotype completely masks the alternative allele
      - recessive a trait whose phenotype is completely masked by the alterative allele
    - - complete dominance it is difficult to know what the genotype of any particular plant is unless the recessive trait is shown
      - test cross a cross involving the plant in question & one that is homozygous recessive for the trait being studied
      - pure-bred lines homozygous recessives kept as a special line, being selfed & kept pure
    - - multiple alleles gene may exist in many form