What is the role of hemoglobin's beta-globin subunit in the regulation of oxygen binding?
A
It increases the affinity of hemoglobin for oxygen
✓
B
It decreases the affinity of hemoglobin for oxygen
C
It has no effect on the affinity of hemoglobin for oxygen
D
It regulates the binding of carbon dioxide to hemoglobin
Explanation
The beta-globin subunit plays a crucial role in regulating oxygen binding to hemoglobin. Mutations in the beta-globin gene can lead to disorders such as beta-thalassemia.
Source
Guyton and Hall Textbook of Medical Physiology
Hematology
Hematology: Hemoglobin and Oxygen Transport
Hematology: Hemoglobin and Oxygen Transport
Medium
MEDICAL
Confidence: high
