Blood Type B Origin Map

March 28, 2021

Overall in the world b is the rarest abo blood allele. The gene for blood group b first appeared in significant numbers somewhere around 10 to 15 000 b c the tail end of the neolithic period in the area of the himalayan highlands now part of present day pakistan and india.

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The b blood type is rare in europe about 10 of the population but fairly common in asia.

Blood type b origin map. Note that it is highest in central asia and lowest among the indigenous peoples of the americas and australia. This list concerns blood type distribution between countries and regions blood type also called a blood group is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells rbcs. It reaches its highest frequency in central asia and northern india while it is believed to have been entirely absent from native american and australian aboriginal populations prior to the arrival of europeans in those areas.

This blood type is also found in high levels among small unrelated groups of people. Overall in the world b is the rarest abo blood allele. Nearly half the population in denmark norway austria and the ukraine have this blood type.

This can be seen with the global frequency patterns of the type b blood allele shown in the map below. Only 16 of humanity have it. These antigens may be proteins carbohydrates glycoproteins or glycolipids depending on the blood group system.

However there are relatively high frequency pockets in africa as well. In montana 80 of the blackfoot tribe has the a blood group. Only 16 of humanity have it.

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