Mains Paper II · 3 Science & Technology · 3.1 Living world, cell and genetics

3.1.4 Mendel's laws and patterns of inheritance

Mendel showed that traits are passed on by discrete factors (genes) that separate and recombine in predictable ratios, and later work added exceptions such as incomplete dominance, multiple alleles and linkage.

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Key terms

  • Mendel
  • dominance
  • segregation
  • independent assortment
  • monohybrid
  • dihybrid
  • incomplete dominance
  • codominance
  • ABO blood group
  • linkage

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