What structure within hemoglobin identifies the type of hemoglobin?

Question

Quizplus · Accepted Answer

The type of hemoglobin is identified by the specific sequences of globin chains that make up the molecule. For example, hemoglobin A has two alpha globin chains and two beta globin chains, while hemoglobin S (sickle cell hemoglobin) has two beta globin chains with a specific mutation in the DNA sequence. The tetrameric structure, heme group, and salt bonds are important components of hemoglobin, but do not specify the type of hemoglobin.

What Structure Within Hemoglobin Identifies the Type of Hemoglobin