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6. The chains of DNA are twisted into a shape called a...

  • Double Spiral
  • Double helix
  • Spiral

7. DNA has...

  • Two long chains of alternating sugar and phosphate molecules
  • Two long chains of bases
  • Two long chains of chromosomes
  • Two long chains of genes

8. Who is credited to the discovery of DNA in 1953?

  • Watson and Crick
  • Franklin and Wilkins

9. DNA stands for...

  • Deoxyribose nucleic acid
  • Deoxygen nutrient acid

10. The chains of DNA in the structure are joined by....

  • Chromosomes
  • DNA
  • Bases
  • Genes

11. The base 'Adenine' A always joins in a pair to....

  • Thymine T
  • Cytosine C
  • Guanine G

12. What is DNA?

  • A nucleic acid
  • A chromosome

13. The order of the bases forms a...

  • Structure
  • Code
  • Gene

14. Who used X-Ray crystallography to work out the structure of DNA?

  • Wilkins and Franklin
  • Watson and Crick

15. DNA determines which amino acids are linked together in order to form the protein a cell needs

  • True
  • False