Molecular Biology: DNA Replication Quiz!

13 Questions | Total Attempts: 18512

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Molecular Biology: DNA Replication Quiz!

Welcome to the Molecular Biology: DNA Replication Quiz! What do you know about this term DNA replication? If you have studied molecular biology, you might have some idea or even a deeper knowledge of this process. It's a process of a single DNA molecule producing its two replicas. Well, here in this quiz, we will ask you some questions related to this topic. Let's see if you can answer them or not!


Questions and Answers
  • 1. 
    What are the four nitrogen bases for DNA?
    • A. 

      Uracil, Thymine, Adenine, and Guanine

    • B. 

      Cytosine, Thymine, Adenine, and Guanine

    • C. 

      Thymine, Adenine, Lytosine, and Guanine

    • D. 

      Thymine, Adenise, Guanine, and Cytosol

  • 2. 
    DNA replication is ____________________________, with each __________________ acting as a template for the synthesis of a complementary _______________.
  • 3. 
    What enzyme, pictured above, breaks apart the hydrogen bonds between two strands of DNA?
    • A. 

      Histone

    • B. 

      Helicase

    • C. 

      Exonuclease

    • D. 

      Endonuclease 

  • 4. 
    What is pictured above in the DNA replication process?
    • A. 

      Replication bubble

    • B. 

      Leading strand

    • C. 

      Lagging strand

    • D. 

      Ligase

    • E. 

      Replication fork

  • 5. 
    Which strand grows continuously towards the replication fork?
    • A. 

      Lagging strand

    • B. 

      DNA strand

    • C. 

      RNA strand

    • D. 

      Replicating strand

    • E. 

      Leading strand

  • 6. 
    DNA polymerase III builds new strands from scratch during DNA replication. True or False?
    • A. 

      True

    • B. 

      False

  • 7. 
    DNA polymerase III reads the parent strand in a ____ to ____ direction, while building the new strand in ______ direction (____to _____).
  • 8. 
    What enzyme replaces RNA primer on the leading strand with DNA?
    • A. 

      Polymerase III

    • B. 

      Ligase

    • C. 

      Polymerase I

    • D. 

      Helicase

  • 9. 
    The lagging strand is the new strand that grows discontinuously away from the replication fork.
    • A. 

      True

    • B. 

      False

  • 10. 
    What is the name of the fragments of the lagging strand pictured above?
    • A. 

      Binding proteins

    • B. 

      Fragmenting lagging strand

    • C. 

      Okazaki segments

    • D. 

      Coding strands

  • 11. 
    What enzyme will solve this problem in the lagging strand? (Pay attention to the red section in the picture).
    • A. 

      Ligase

    • B. 

      Binding proteins

    • C. 

      Helicase

    • D. 

      Polymerase I

  • 12. 
    The new DNA strand formed after DNA replication is an exact copy of its parent strand. True or False?
    • A. 

      True

    • B. 

      False

  • 13. 
    To make sure you can remember what you watched, what was the key element that kept the strands from binding back together once separated?
    • A. 

      Binding proteins

    • B. 

      Ligase

    • C. 

      Helicase

    • D. 

      DNA wall

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