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5 Written Questions

5 Matching Questions

  1. Satellite DNA
  2. Topoisomerase
  3. Ribose
  4. Centromere
  5. Histone Proteins
  1. a made of sugar, 1 nucleotide and 1 phosphate
  2. b Proteins that bind to the segment of DNA that links neighboring beads.
  3. c a region of DNA typically found near the middle of a chromosome where two identical sister chromatids come closest in contact.
  4. d An Enzyme that breaks DNA strands allowing them to untwist them during replication
  5. e segments of repetitive DNA #13, 14, 15, 21 and 22

5 Multiple Choice Questions

  1. Models of Replication; Conservative, semiconservative, disruptive/dispersive
  2. Top end and bottom end are not parallel, 5 prime has phosphate end and 3 prime has an OH- end.
  3. Adenine
    Uracil
    Cytosine
    Guanine
  4. The original molecule; the parental double helix remains intact and an all-new copy is made.
  5. 30% A
    30% T
    20% C
    20% G

5 True/False Questions

  1. Okazaki fragmentslittle pieces of DNA on the lagging strand that patches DNA nucleotides.

          

  2. Histone ProteinProteins that bind to the segment of DNA that links neighboring beads.

          

  3. In what phase does DNA replication take place?when a double helix replicates, each of the two daughter molecules will have one old strand, derived from the parent molecule and one newly made strand.

          

  4. Rosalind Franklinx-ray diffraction crystalography photographer

          

  5. 4 Nitrogen Bases of DNAAdenine
    Uracil
    Cytosine
    Guanine

          

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