What is the primary function of the hemoglobin subunit alpha-globin in the context of hemoglobin synthesis?

A To bind to heme and facilitate oxygen transport
B To regulate the expression of beta-globin genes
C To stabilize the tetrameric structure of hemoglobin ✓
D To initiate the translation of globin mRNAs

Explanation

The alpha-globin subunit plays a crucial role in stabilizing the tetrameric structure of hemoglobin, which is essential for its function in oxygen transport.

Source

Molecular Biology of the Cell by Alberts et al.
Hematology Hematology: Hemoglobin and Oxygen Transport Hematology: Hemoglobin and Oxygen Transport Medium MEDICAL Confidence: high