Haemoglobin

Haemoglobin is an iron-rich protein in red blood cells. It carries oxygen to all parts of the body. Haemoglobin is made up of four subunits: two subunits of alpha-globin and two subunits of beta-globin. Alpha-globin is a component of both fetal haemoglobin, which is active only before birth and in the new-born period, and adult haemoglobin, which is active throughout the rest of life.

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