Does blood type B Rh negative come from the Mongols?

The origin of blood type B- Rh negative is not solely attributed to the Mongols. While it is true that this blood type is relatively common in certain Central and East Asian populations, including Mongolia, it is also found in other parts of the world. Blood types are determined by the presence or absence of specific antigens on the surface of red blood cells, and the distribution of these antigens is influenced by various genetic and evolutionary factors that occurred over thousands of years involving different populations.

The B blood type is believed to have originated in Asia and subsequently spread to other regions, including Europe, through migrations and genetic admixtures. The Rh-negative factor, which refers to the absence of the Rh (Rhesus) antigen, is also found in various populations worldwide.

Therefore, while the B- Rh negative blood type may be more prevalent in some Asian populations, its distribution is not limited to a single ethnic group or geographic area. It is the result of complex genetic variations that have occurred throughout human history involving multiple populations.