Page 233 - The Errors the American National Academy of Sciences
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HEMOGLOBIN MOLECULE
                                                         Heme
                                          Iron
                                                         group
                             Alpha chain
                                                                    Beta chain










                                                                        Helix shape
                                                                        of the
                 Red Blood                                              polypeptide
                 Cell                                                   molecule

                               Beta chain                           Alpha
                                                                    chain




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