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2. 'Changes in allele frequencies by chance' is the definition for what?

  • Gene flow
  • Mutation
  • Genetic drift
  • Alleles

3. Evolution is independent when...

  • mutation, selection, drift and gene flow operate independently
  • mutation, selection, drift and gene flow operate in unison

4. 'Most genetic variation maintained by genetic drift of alleles conferring no selective advantage' is what theory of evolution?

  • Classical theory
  • Shifting balance theory
  • Neutral theory
  • Balance theory

5. How many processes affect microevolution?

  • 4
  • 7
  • 3
  • 6
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