5. It is possible to measure the distance and time of racial proto-speciation in the historical record.
6. Africa > East Africa > Coastal Route > Dry Persian Gulf: South Eurasian > FORK:
Tibetan Plateu?: East Asian
West Eurasians
North Eurasians
… Amerindians
… Europeans
Source date (UTC): 2021-01-07 19:02:55 UTC
Original post: https://twitter.com/i/web/status/1347257423002791940
Replying to: https://twitter.com/i/web/status/1347257421631254528
IN REPLY TO:
Unknown author
1.Most human differences are regulatory expressions of alleles, not mutations (changes) in alleles.
2.A variation must survive local genetic competition.
3.Isolation is necessary for the survival of changes in regulation or alleles.
4. So races evolved by distance+isolation+time.
Original post: https://x.com/i/web/status/1347257421631254528
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