BMS1031 Molecular Biology

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1. How is the 3' to 5' strand get synthesised?

  • The lagging strand is copied as short fragments which are joined using DNA ligase
  • The leading strand is copied as short fragments started by RNA primers
  • The lagging strand is copied as RNA using a DNA primase
  • The leading strand is copied continuously using RNA polymerase
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2. Which RNAs have regulatory roles?

  • miRNA and siRNA
  • miRNA and mRNA
  • tRNA and rRNA
  • snRNA and siRNA

3. Which of these isnt an eukaryotic initiation factors?

  • TFIIH
  • EFIIC
  • TFIIE
  • TFIID
  • TATA box

4. DNA replication is?

  • non-conservation
  • semi conservative
  • conservative
  • liberal

5. The insertion or deletion of nucleotides that disrupt the reading frame are:

  • Frameshift mutations
  • Silent mutations
  • Mismatch mutations
  • Genetic mutation

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