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6. 'Different variants of a particular gene' is a definition for what?

  • Microevolution
  • Alleles
  • Mutation
  • Genes

7. Is genetic drift important in small populations?

  • Yes
  • No

8. Mutation creates variation

  • True
  • False

9. How many deaths a year is sickle cell anaemia responsible for?

  • 100,000
  • 200,000
  • 50,000
  • 25,000

10. Favourable mutations are unlikely to survive

  • False
  • True

11. Is sickle cell anaemia a hereditary disease?

  • Yes
  • No

12. 'In populations that are subdivided, both random genetic drift and gene flow can become very important in evolution' is what theory of evolution?

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

13. What is the correct definition of Microevolution?

  • A sequence of nucleic acid coding for a function
  • The change in frequency in alleles in a population over time
  • The change in frequency in genes in a population over time
  • A sequence of nucleic acid coding for progress

14. HETEROZYGOTES are the fittest genotype

  • True
  • False

15. How many processes affect microevolution?

  • 6
  • 7
  • 4
  • 3

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

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

17. Morphological species concept is what?

  • The concept species defined as organisms with shared morphological features
  • The concept species defined as organisms with independant morphological features

18. 'Exchange of alleles between populations' is the definition for what?

  • Alleles
  • Genes
  • Genetic flow
  • Genetic drift

19. When malaria is absent, NATURAL SELECTION acts to eliminate the sickle-cell allele

  • True
  • False

20. 'Selection removes genetic variation by favouring alleles that confer greater fitness' is what theory of evolution?

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