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6. Which characteristic shows continuous variation?

  • Height
  • Gender
  • Eye colour

7. Which characteristic shows discontinuous variation?

  • Weight
  • Blood group
  • Foot length

8. Which statement about inheritance is correct?

  • The nucleus of a cell contains chromosomes, which carry genes
  • The nucleus of a cell contains genes, which carry chromosomes
  • The cytoplasm of a cell contains chromosomes, which carry genes

9. Which statement about the effects of mutation is correct?

  • Some mutations are beneficial
  • All mutations cause some effect
  • All mutations are harmful

10. What type of factor is involved in determining body mass?

  • Both environmental factors and inherited factors
  • Inherited factors only
  • Environmental factors only