QUANTITATIVE INHERITANCE (POLYGENES)POLYGENY (OR POLYGENIC INHERITANCE)

• Continuous variation

• Multiple Factor or Multiple-Gene Hypothesis

  • Nilsson-Ehle's (1909) grain color in wheat
    P1 Red grain X White grain
    
    F1 100% intermediate color
    F2 1/16 showed white grain
    15/16 showed some degree of red

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