Biology 9700 · AS & A Level · Structure of nucleic acids and replication of DNA

Structure of nucleic acids and replication of DNA — practice question

Which statement accurately describes a feature of a DNA molecule?

  • AIt has two parallel strands twisted into a double helix.
  • BIt has complementary bases all held together by three hydrogen bonds.
  • CIt has phosphodiester bonds that are formed using DNA ligase.
  • DIt has a backbone of phosphate molecules and nucleotides.

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