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q4

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Questions and Answers

Which of the following sequences could represent the DNA after one round of replication in the nonradioactive medium?

  • A A T T G A T C TTAACTAG
  • A* A* T T G A* T C T T A* A* C T A* G
  • A* A* T T G A* T C T T AACT AG
  • A* A T T G A* T C T T A* A* C T A G (correct)

    • What joins DNA fragments to the lagging strand?

  • Telomere
  • Centromere
  • Helicase
  • DNA Ligase (correct)

    • What is the function of 3'-5' exonuclease activity in DNA polymerase III?

  • Proof-reading of RNA primers
  • Proof-reading of the nascent DNA (correct)
  • DNA break repair
  • Removal of Okazaki fragments

    • What molecules are key to passing certain types of chromatin structure to daughter cells during cell reproduction?

    <p>Histone molecules</p> Signup and view all the answers

    What is the function of telomeres?

    <p>A and C only</p> Signup and view all the answers

    What regulates the initiation of Eukaryotic DNA replication?

    <p>Phosphorylation of ORC and MCM helicase</p> Signup and view all the answers

    When does DNA replication occur?

    <p>S phase</p> Signup and view all the answers

    Which of the following is NOT involved in DNA replication?

    <p>DNA polymerase I</p> Signup and view all the answers

    What is the function of DNA helicase during DNA replication?

    <p>Unwinds the double-stranded DNA</p> Signup and view all the answers

    What is the role of DNA ligase in DNA replication?

    <p>Joins Okazaki fragments</p> Signup and view all the answers

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