Biology 9700 · AS & A Level · Proteins

Proteins — practice question

Myoglobin is a protein that carries out a role similar to haemoglobin. Yet myoglobin has no quaternary structure. Why is there no quaternary structure in myoglobin?

  • AMyoglobin does not contain a haem group.
  • BMyoglobin does not contain any alpha helices.
  • CMyoglobin has a fibrous rather than a globular structure.
  • DMyoglobin has only one polypeptide chain.

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