Biology 9700 · AS & A Level · Proteins

Proteins — practice question

What causes the formation of a polypeptide chain to stop during protein synthesis in cells?

  • Awhen a ‘stop’ codon is reached on the mRNA molecule
  • Bwhen a ‘stop’ codon is reached on the tRNA molecule
  • Cwhen the ribosome reaches the end of the mRNA molecule
  • Dwhen the ribosome reaches the end of the tRNA molecule

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