Understanding DNA Structure
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Questions and Answers

What is the structure of DNA?

  • Single helix consisting of a single chain of nucleotides
  • Double helix consisting of two long chains of nucleotides twisted together (correct)
  • Spiral helix consisting of a spiral chain of nucleotides
  • Triple helix consisting of three long chains of nucleotides twisted together

    • Which nitrogenous base always pairs with thymine in DNA?

  • Cytosine (C)
  • Guanine (G)
  • Adenine (A) (correct)
  • Uracil (U)

    • Which enzyme is responsible for separating the two strands of DNA during replication?

  • DNA polymerase
  • Ligase
  • Helicase (correct)
  • Primase

    • What is the function of primase in DNA replication?

    <p>Synthesizes RNA primers</p> Signup and view all the answers

    What forms the rungs of the DNA ladder?

    <p>Adenine always pairing with thymine, and guanine always pairing with cytosine</p> Signup and view all the answers

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