4 ms·

So it is even more impressive that more blacks die of covid then whites. Blacks usually don't have Neanderthal genes. Racism and inequality are awful.

• tzs 6y ago
  > Blacks usually don't have Neanderthal genes That brings to mind a naming question. Most researchers seem to put the identical ancestors point (also known as the all common ancestors point or the genetic isopoint) for humans at somewhere in the last 20k years. That's the point where every single human alive either had no descendants who are alive today or everyone alive today is their descendant. Since the Neanderthals were extinct long before the identical ancestor point, it follows that if anyone alive today is descended from Neanderthals, then everyone alive today is descended from Neanderthals. The naming question: is there a word or term for when person A is a descendant of person B but does not have any genes from B? I've heard of someone using the term "homeopathic descendant" for this, but I think that was offered as a joke.
  • itronitron 6y ago
    The visual analogy that comes to mind is representing each person in the first generation as a randomly selected half deck of playing cards, second generation is a random selection of their parents cards, and so on.