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6. how many hydrogen bonds in AT

  • 1
  • 4
  • 2
  • 3

7. What are MacLeod & McCarty famous for ?

  • transforming bacteriophage experiments
  • conducting bacteria transformation experiments
  • conducting bacteriophage experiments
  • transforming bacteria experiments

8. which if these is not an important purpose of DNA structure

  • be able to faithfully replicate
  • Be able to change in a controlled way
  • to be unstable for a fixed amount of time
  • Be able to control expression of traits

9. What is Friedrich Miescher famous for?

  • conducting bacteria transformation experiments in 1868
  • conducting bacteriophage experiments in 1886
  • isolating Nuclein from human pus in 1868
  • isolating Nuclein from human pus in 1886

10. how many hydrogen bonds in GC

  • 3
  • 1
  • 2
  • 4

11. How is uracil different to Thymine?

  • thymine contains methyl group on 5th carbon
  • uracil contains methyl group on 5th carbon
  • thymine contains methyl group on 3rd carbon
  • thymine contains NH2 on 4th carbon

12. what are the two types of Bases

  • Purine & Pymadine
  • Pyrimadin & purine
  • Pyrimadine &Purine
  • Pyramidine & Purine

13. In what year did Hershey & Chase confirm that DNA is genetic material

  • 1854
  • 1868
  • 1953
  • 156
  • 1968

14. what bonds hold base pairs together

  • Hydrogen bonds
  • covalent bonds
  • glycosidic bonds
  • phosphodiester linkages

15. In what year did Rosalind Franklin identify the double helix of DNA

  • 1956
  • 1953
  • 1952
  • 1856

16. who identified the structure of DNA

  • Friedrich Miescher
  • MacLeod &McCarty
  • Watson & Crick
  • Hershey & Chase

17. What type of base is uracil?

  • pyrimadine
  • Purine

18. what type of base is Guanine

  • Purine
  • Pyrimadine