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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

The protein haemoglobin found in humans can be described having a ___________ structure.

Options

  1. Aprimary
  2. Bsecondary
  3. Ctertiary
  4. Dquaternary

Correct answer

D. quaternary

Step-by-step solution

When a protein is made up of two or more than two polypeptide held together variously than it form quaternary structure. Protein haemoglobin has quaternary structure as it is made up of 4 polypeptide or subunits. Two of these are identical to each other. Hence two subunits of alpha type and two subunits of beta type together constitutes the human haemoglobin molecule.

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