Commonly abbreviated as Hb, Hemoglobin, or Heamoglobin, is the iron containing oxygen in our red blood cells which transport metalloproteins. All mammals on earth have hemoglobin, as it is a necessary function in the blood. It contains globin, apoprotien, and four heme groups (organic molecules with one atom of iron attached to each).The gene for the hemoglobin protien can sometimes mutate. This occurence results in one or more of many diseases, but most commonly turns into Thalassemia or Sickle-cell disease.

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