We have been taught all these years in school, universities and even medical schools that your parents determines your Blood Types. The TRUTH is you as a FETUS chooses your Blood Type from the "Genetic Blueprint" database of 48 maternal and 48 paternal DNA...etc. imprints. You inherit 2 Blood Types from your mother (a dominant/recessive) and 2 Blood Types from your father (a dominant/recessive) but you as a fetus will choose ONLY TWO - mom, or dad, or a combination of both.