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katrin [286]
3 years ago
8

The blood group B is almost absent in Native Americans, whose ancestors arrived in very small numbers about 10,000 years ago. Wh

ich factor is responsible for this phenomenon?
Biology
1 answer:
Taya2010 [7]3 years ago
8 0
The factor that is responsible for the phenomenon of the blood group B being almost absent in Native Americans whose ancestors arrived in very small numbers about 10,000 years ago would be called the 'founder effect'. 
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