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CAIE A-Level Biology 17.1.3 Genetic Basis of Variation

Practise explaining continuous traits through polygenes with additive effects and discontinuous traits through large allele effects, multiple alleles or epistasis.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • explain continuous variation through polygenes whose alleles have additive effects
  • infer a discontinuous trait from large allele effects, multiple alleles or epistasis

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