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. What base does Adenine pair with?

  • Thymine
  • Uracil
  • Cytosine
  • Guanine

3. 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

4. What bond is formed between nucleotides?

  • Glycosidic
  • Phosphodiester
  • Ester
  • Peptide

5. What does semi-conservative replication mean?

  • 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
  • Both DNA strands are broken down into ucleotides and used to assemble a new strand of DNA

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