Haemoglobin exhibits a:
Correct answer: C. Quaternary structure
- A. Secondary structure
- B. Primary structure
- C. Quaternary structure
- D. Tertiary structure
Explanation
Haemoglobin has a quaternary structure. It consists of two pairs of different proteins, designated the α and β chains. There are 141 and 146 amino acids in the α and β chains of haemoglobin, respectively. As in myoglobin, each subunit is linked covalently to a molecule of heme.
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