AS Biology Nucleic Acids

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1. What enzyme breaks the hydrogen bonds between bases on the two polynucleotide strands of DNA during semi-conservative replication?

  • DNA Helicase
  • DNA Polymerase
  • RNA Pepsin
  • DNA Amylase
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Other questions in this quiz

2. Between which parts of the nucleotides does this bond form?

  • The Phosphate and the Sugar
  • The Base and the Sugar
  • The Phosphate and the Base

3. What bond is formed between nucleotides?

  • Phosphodiester
  • Ester
  • Glycosidic
  • Peptide

4. What does semi-conservative replication mean?

  • Both DNA strands are broken down into ucleotides and used to assemble a new strand of DNA
  • Each new DNA molecule contains one strand from the original DNA and one new strand
  • New strands of DNA are made by attaching nucleotides to a strand of RNA

5. What is a nucleotide made up of?

  • Pentose sugar, Glycerol molecule, Carbon atom
  • Pentose sugar, Phosphate, Nitrogenous-containing base
  • Hexose sugar, phospholipid, R base


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