To repair a thymine dimmer by nucleotide excision

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35. To repair a thymine dimmer by nucleotide excision repair, in which order do the necessary enzymes act? A. exonuclease, DNA polymerase III, RNA primase B. helicase, DNA polymerase I, DNA ligase C. DNA polymerase I, DNA polymerase III, DNA ligase D. DNA ligase, nuclease, helicase E. endonuclease, DNA polymerase I, DNA ligase
36. Which of the following removes the RNA nucleotides from the primer and adds equivalent DNA nucleotides to the 3’ end of the Okazaki fragments?
D. DNA polymerase I 37. Which of the following separates the DNA template strands during replication?
38. Which of the following covalently connects segments of DNA?
39. Which of the following synthesizes short segments of RNA? A. helicase B. DNA polymerase I C. ligase D. RNase E. primase
40. What is the role of DNA ligase in the elongation of the lagging strand during DNA replication?
41. The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that
42. The leading strand and lagging strands differ in that
43. The elongation of the leading strand during DNA synthesis A. progresses away from the replication fork B. occurs in the 3’ to 5’ direction C. produces Okazaki fragments D. depends on the action of DNA polymerase III E. does not require a template strand

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