DNA

10 Questions | Total Attempts: 63

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DNA Quizzes & Trivia

Chapter 16


Questions and Answers
  • 1. 
    The scientist who furhtered Griffith's transformation experiment and determined that the genetic material was not proteins but was not supported was
    • A. 

      Chargoff

    • B. 

      Avery

    • C. 

      Franklin

    • D. 

      Meselson

  • 2. 
    How is the 3' end of DNA recognized?
    • A. 

      It has a P group attached

    • B. 

      It has a 3 carbon sugar exposed

    • C. 

      It has a hydroxyl group exposed

    • D. 

      It has a base dangling

  • 3. 
    How can the leading and laggin strands be differentiated?
    • A. 

      The lagging strand is 5' to 3' and adds nucleotides toward the replication fork

    • B. 

      The leading strand is 5' to 3' and adds nucleotides away from the replication fork

    • C. 

      The lagging strand is 5' to 3' and adds okazaki fragments away from the replication fork

    • D. 

      The leading strand is 3' to 5' and adds okazaki fragments toward the replication fork

  • 4. 
    Which enzyme/function association is not correct?
    • A. 

      DNA polymerase I adds nucleotides

    • B. 

      Single strand binding proteins prevent recoil

    • C. 

      Gyrase reduces tension

    • D. 

      Helicase unwinds and unzips

  • 5. 
    The enzyme that prevents degradation of DNA after replication is
    • A. 

      Reducatase

    • B. 

      Replicase

    • C. 

      Exonuclease

    • D. 

      Telomerase

  • 6. 
    If DNA polymerase I is absent from replication, what cannot occur?
    • A. 

      Nucleotides cannot bind

    • B. 

      Removal of primers

    • C. 

      Unwinding of DNA

    • D. 

      Repair of DNA errors

  • 7. 
    TTAGGG represents
    • A. 

      Replication origin

    • B. 

      Stop triplet

    • C. 

      Telomere

    • D. 

      Initiation primosome

  • 8. 
    Most errors of DNA replication are fixed by DNA polymerase
    • A. 

      I

    • B. 

      II

    • C. 

      III

    • D. 

      IV

  • 9. 
    When an icorrect area of DNA is found, _____ cuts it and DNA II fixes it.
    • A. 

      DNA ligase

    • B. 

      DNA polymerase I

    • C. 

      DNA kinase

    • D. 

      DNA nuclease

  • 10. 
    Why is a dimer of DNA polymerase II needed?
    • A. 

      DNA polymerase III is unstable therefore 2 are needed

    • B. 

      There are 2 strands being replicated

    • C. 

      Each strand has to be kept in place by binding proteins

    • D. 

      Each strand must be held