structure of DNA

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1. how does adenine differ to guanine?

  • adenine contains NH2 on 6th carbon, guanine has CO group on 6th carbon
  • guanine contains NH2 on 6th Carbon, adenine has CO group on 6th carbon
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2. what type of base is Adenine

  • Purine
  • Pyrimadine

3. What is Friedrich Miescher famous for?

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

4. What are MacLeod & McCarty famous for ?

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

5. How does cytosine differ to Thymine?

  • thymine has NH2 group on 4th carbon and has 2 double bonds
  • cytosine contains NH2 group on 4th carbon & has 2 double bonds
  • cytosine contains NH2 group on 5th carbon and has 2 double bonds
  • cytosine has NH2 group on 5th carbon only
  • thymine has NH2 group on 4th carbon and has 1 double bond

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