Chapter 16 Review: 19629/5025265

  1. Which enzyme is NOT involved in DNA replication?
    1. primase (wrong)
    2. helicase (wrong)
    3. ligase (wrong)
    4. telomerase <==== correct
    5. DNA polymerase (wrong)

  2. Which base pair forms the maximum number of hydrogen bonds?
    1. A - T (wrong)
    2. U - A (wrong)
    3. G - C <==== correct
    4. U - T (wrong)
    5. T - C (wrong)
      Hint
  3. DNA is a double helix, with the ________ backbones on the ________ .
    1. sugar-phosphate, outside <==== correct
    2. sugar-phosphate, inside (wrong)
    3. nitrogenous base, outside (wrong)
    4. nitrogenous base, inside (wrong)
    5. none of the choices (wrong)
      Hint
  4. Excessive exposure to ultraviolet radiation can cause this kind of DNA damage.
    1. thymine dimer <==== correct
    2. base-pair substitution (wrong)
    3. frame-shift (wrong)
    4. silent mutation (wrong)
    5. reverse transcription (wrong)
      Hint
  5. DNA polymerization always proceeds in which direction?
    1. 1' to 5' (wrong)
    2. 3' to 5' (wrong)
    3. 5' to 1' (wrong)
    4. 1' to 3' (wrong)
    5. 5' to 3' <==== correct
      Hint
  6. In eukaryotes, DNA is bound with proteins called
    1. ribosomes. (wrong)
    2. centrosomes. (wrong)
    3. histones. <==== correct
    4. chromosomes. (wrong)
    5. proteasomes. (wrong)
      Hint
  7. During termination of DNA replication, the enzyme ________ joins together Okazaki fragments on the ________ strand.
    1. primase, lagging (wrong)
    2. primase, leading (wrong)
    3. helicase, leading (wrong)
    4. ligase, lagging <==== correct
    5. ligase, leading (wrong)
      Hint