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Mixture of hemoglobin? |
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Answer» .!! The hemoglobin (HB) molecule is roughly spherical and comprises TWO pairs of dissimilar subunits (FIGURE 1). Each of the subunits is a folded polypeptide chain (the globin portion) with a heme group (derived from porphyrin) attached. At the center of each heme group is a single atom of iron in the ferrous (Fe2+) state. thαnk чσu |
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