Would a deficiency in hemoglobin affect oxygen transport or carbon dioxide transport?

A deficiency in hemoglobin would primarily affect oxygen transport, as hemoglobin is responsible for binding and carrying oxygen from the lungs to tissues throughout the body. While hemoglobin also plays a role in the transport of carbon dioxide, its main function is oxygen delivery. Therefore, a lack of hemoglobin would lead to decreased oxygen availability for cellular processes, which can have significant physiological repercussions.