\ˌe͡ɪbˌiːˈə͡ʊ fˈaktəz], \ˌeɪbˌiːˈəʊ fˈaktəz], \ˌeɪ_b_ˌiː__ˈəʊ f_ˈa_k_t_ə_z]\
Definitions of ABO FACTORS
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The major human blood type system which depends on the presence or absence of two antigens A and B. Type O occurs when neither A nor B is present and AB when both are present. A and B are genetic factors that determine the presence of enzymes for the synthesis of certain glycoproteins mainly in the red cell membrane.
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