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Politics : Formerly About Advanced Micro Devices

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Eric
To: pocotrader who wrote (1574566)12/2/2025 4:50:51 PM
From: combjelly1 Recommendation   of 1579927
 
There is no genetic basis for "races". Homo sap. is actually pretty genetically uniform. We were darwinnowed at least once relatively recently. Now you could probably squint your eyes and tilt your head to convince yourself that you could divvy up the races as to the percentage of Neanderthal and/or Denisovan genes they have, but that is pretty iffy at best. If for no other reason, there are likely more related species than those two who have contributed genes. Homo habilis, or at least one or more closely related species, managed to wander across Africa and Eurasia, giving rise to H. sap., Neanderthals and Denisovans. Given the area and length of time, there very well may others that we haven't identified yet and are carried in our genome.

Despite this, the human genome isn't all that diverse. Now there is a huge phenotypical variance in the species which gives the appearance of a diverse genome, but that isn't reflected in the actual genes. Our ancestors spent the bulk of our evolution on the raw edge of extinction. And, despite a global distribution, they still managed to swap genes far and wide, limiting the pressures towards speciation.
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