While the provided data focuses on Western Europe (where B is ~8.5%), global population genetics shows that the B allele reaches its highest frequency in parts of Central Asia and Northern India. The presentation's table for Western Europe shows B at 8.5%, A at 41.8%, O at 46.7%, and AB at 3%. This distribution is very different in other regions. For example, in some populations in India and Pakistan, the frequency of type B can exceed 30-40%. Understanding these geographic and ethnic variations in ABO frequency is important for blood bank inventory management in diverse communities and for anthropological studies of human migration.

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