He describes the ABO alleles and how the pairing of some may help protect someone in different geographical areas of the world from diseases. But each blood type is distributed around the globe and not distinctively between countries. For example, he displays a model that shows the percentage of all countries population that obtain Type A blood, and it is clearly shown it is all over the world. If you take a look Greenland, one can notice that the west side of country has a higher percentage of Type A while the East side has a very moderate population containing the allele, but this does not mean that they type of humans on the east side are a different race than the humans on the west. This observation can also be seen in other countries and continents for all blood
He describes the ABO alleles and how the pairing of some may help protect someone in different geographical areas of the world from diseases. But each blood type is distributed around the globe and not distinctively between countries. For example, he displays a model that shows the percentage of all countries population that obtain Type A blood, and it is clearly shown it is all over the world. If you take a look Greenland, one can notice that the west side of country has a higher percentage of Type A while the East side has a very moderate population containing the allele, but this does not mean that they type of humans on the east side are a different race than the humans on the west. This observation can also be seen in other countries and continents for all blood