tetramer

biology

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In evolution: Molecular phylogeny of genes
Hemoglobin molecules are tetramers (molecules made of four subunits), consisting of two polypeptides (relatively short protein chains) of one kind and two of another kind. In embryonic hemoglobin E, one of the two kinds of polypeptide is designated ε; in fetal hemoglogin F, it is γ; in adult…
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