The interaction of several polypeptide chains in a hemoglobin molecule is its ____ structure.
A) primary
B) secondary
C) tertiary
D) quaternary
E) combined

Question

Quizplus · Accepted Answer

Hemoglobin is a complex protein made up of four subunits, each with its own primary, secondary, and tertiary structure. The interaction of these four subunits constitutes the quaternary structure of hemoglobin.

The Interaction of Several Polypeptide Chains in a Hemoglobin Molecule