291–292 of 292 posts
>The earlier Chinese publications, although limited in scope, found CRISPR caused editing errors and that the desired DNA changes were taken up not by all the cells of an embryo, only some.
Instability is an inherent property of genes.
Earlier quoted context omitted.
Our genetic homogeneity implies that anatomically modern humans arose relatively recently (perhaps 200,000 years ago) and that our population size was quite small at one time (perhaps 10,000 breeding individuals). -Another strongly supported hypothesis is that there was an near-extinction event that wiped out all but a pocket of human settlements from which we descended. - The diversity in other species that are abou…
That sounds really interesting, does this hypothesis have a name so I can read up on it a bit more?
-It's unlikely that the Toba catastrophe was the root cause of the bottleneck as reasoned in this investigation:
https://www.livescience.com/29130-toba-supervolcano-effects....
- I wonder if the hypothesis of leaving Africa in small groups could be effectively tested.