DNA Replication Quiz Questions And Answers 2

10 Questions | Total Attempts: 149

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DNA Replication Quizzes & Trivia

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Questions and Answers
  • 1. 
    False about DNA replication
    • A. 

      Semiconservative

    • B. 

      Bi-directional

    • C. 

      Polarity is 5’ to 3’

    • D. 

      Polarity is 3’ to 5’

  • 2. 
    True about DNA-Topoisomerase II
    • A. 

      Acts on single strand

    • B. 

      ATP is not needed.

    • C. 

      ATP is needed

    • D. 

      Relaxes negative supercoil only

  • 3. 
    Cofactor for needed fro prokaryotic DNA ligase is 
    • A. 

      NAD+

    • B. 

      ATP

    • C. 

      NADP+

    • D. 

      None of the above

  • 4. 
    Length of okazagi fragments in Eukaryotes 
    • A. 

      100-200 nucleotides

    • B. 

      400-600 nucleotides

    • C. 

      500-700 nucleotides

    • D. 

      1000 -2000 nucleotides

  • 5. 
    Klenow fragment is a proteolytic product of E.coli
    • A. 

      DNA polymerase I

    • B. 

      DNA polymerase II

    • C. 

      DNA polymerase III

    • D. 

      None of the above

  • 6. 
    Klenow fragment lacks this activity 
    • A. 

      5'→ 3' polymerase

    • B. 

      5'→3' exonuclease

    • C. 

      3'→5' exonuclease

    • D. 

      None of the above

  • 7. 
    FALSE about leading strand
    • A. 

      Continuous synthesis towards the replicative fork

    • B. 

      Single RNA Primer is enough

    • C. 

      Main enzyme is DNA polymerase III

    • D. 

      Main enzyme is DNA polymerase I

  • 8. 
    Which subunit  of Eukaryotic DNA Polymerase has primase activity
    • A. 

      Alpha

    • B. 

      Beta

    • C. 

      Gamma

    • D. 

      Delta

  • 9. 
    RNAse H is a 
    • A. 

      Exonuclease involved in removal of DNA primer

    • B. 

      Endonuclease involved in removal of DNA primer

    • C. 

      Exonuclease involved in removal of RNA primer

    • D. 

      Endonuclease involved in removal of RNA primer

  • 10. 
    True about Proliferating cell nuclear antigen 
    • A. 

      Subunit of DNA polymerase delta

    • B. 

      DNA Sliding clamp

    • C. 

      Seen only in eukaryotes

    • D. 

      All of the above