Biology 9700 · AS & A Level · Proteins

Proteins — practice question

The diagram illustrates a strand of DNA and mRNA while transcription is taking place. Which row correctly names 1, 2 and 3?

  • Apurine, deoxyribose, two hydrogen bonds
  • Bpurine, ribose, three hydrogen bonds
  • Cpyrimidine, deoxyribose, two hydrogen bonds
  • Dpyrimidine, ribose, three hydrogen bonds

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