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aalyn [17]
3 years ago
11

the blood group b is almost absent in native americans, whose ancestors arrived in very small numbers about 1,000 years ago. whi

ch factor is responsible for this phenomenon
Biology
1 answer:
Andreyy893 years ago
6 0
"Founder effect" is the one factor among the choices given in the question that is responsible for this phenomenon. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your great help.
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