The relationships between the ABO(H) blood group-specific glycosylations and the levels of corresponding innate antibodies

The non-phenotype O(h) or Bombay type and blood group AB appear to mark two opposite directions of negative (natural) selection and demonstrate how phenotype and isoagglutinin production form an evolutionary functional unity, in which the degree of phenotype diversity and innate immunity behave inversely proportional and demonstrate again the central evolutionary position of the human blood group O(H).