05 DNA - The Genetic Material

13 Questions | Total Attempts: 224

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05 DNA - The Genetic Material

Basic DNA structure


Questions and Answers
  • 1. 
    Miescher discovered nuclein, a new class of organic molecule. Today we call it nucleic acid. He knew it was not protein because it had the element:
    • A. 

      Sulfur

    • B. 

      Carbon

    • C. 

      Nitrogen

    • D. 

      Oxygen

    • E. 

      Phosphorus

  • 2. 
    Miescher discovered nuclein, a new class of organic molecule. Today we call it nucleic acid. He knew it was not protein because it did not have the element:
  • 3. 
    Avery, MacLeod, and McCarty showed that ______ of IIIS bacteria was capable of transforming live IIR bacteria in to live IIIS bacteria.
  • 4. 
    In Griffith's 1928 experiment, when live IIR bacteria and heat-killed IIIS bacteria were injected a mouse:
    • A. 

      The mouse lived.

    • B. 

      The IIR bacteria were transformed into IIIS bacteria.

    • C. 

      DNA was proven to be the genetic material of the bacteria.

    • D. 

      All of the above.

    • E. 

      None of the above.

  • 5. 
    DNA has a deoxribose - _______ backbone.
  • 6. 
    The 3' oxygen of deoxyribose of a DNA nucleotide is linked the ___' oxygen of deoxyribose of the adjacent nucleotide by way of a phosphate group. (The answer is a number.)
  • 7. 
    The pyrimidines found in DNA are cytosine and _______.
  • 8. 
    [The nitrogen base on the right is _______.
  • 9. 
    If a frog's DNA consists of 23% adenine, then the percent of guanine is _____%.
  • 10. 
    Watson and Crick used the X-ray diffraction data of Wilkins and _______. (last name)
  • 11. 
    DNA's two strands run in opposite directions. That is, DNA is _______.
  • 12. 
    A DNA double helix 30 base pairs long would be ____Å long. (The answer is a number.)
  • 13. 
    On opposite sides of a DNA double helix there are grooves: a larger groove and a smaller groove. The smaller groove is called the _______ groove.