The origin of rh negative blood is still unknown. There are a few things we do, however, know for certain: Rh(D) negative blood is the result of a gene deletion. Blood type frequencies in ancient Europe were far different from today. The gene deletion may have first taken place among the ancestors to the Yamnaya. Red hair among humans is known to originate among them as well and blue eyes are likely to have had originated there. The function of the Rh proteins is oxygen and CO2 transport, so the reason our mutation has survived may mean that the conditions for us were ideal. Today’s health issues among Rh(D) negative individuals likely indicate a drastic change in living conditions. Toxins … Continue reading The origin of Rh negative blood