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We know selection is against intelligence. We see it in data, for example from Iceland. Selection against variants in the genome associated with educational at
by sanxiyn 5y ago
We know selection is against intelligence. We see it in data, for example from Iceland.
Selection against variants in the genome associated with educational attainment: https://www.pnas.org/content/114/5/E727 https://www.pnas.org/content/114/5/E727
- michael1999 5y agoSuppose that in olden-times, only a handful of socially dominant kin networks were wealthy enough for education. And then social and education reform changed things so that a) everyone finished high-school, regardless of birth, and b) higher education resource allocation shifted to merit and motivation from social breeding. Suppose further, that the breakdown of the class system meant that idiosyncratic genetic markers of aristocratic inbreeding declined along with elite endogamy. Would the results of this study be any different?
- rory 5y ago> genetic markers of aristocratic inbreeding declined along with elite endogamy I think this is the flaw in that theory. The genetic markers each come from a single parent, and so wouldn't decline if those carrying them started mating at random rather than within a specific subpopulation.
- michael1999 5y agoWe don't see the Habsburg jaw much these days.
- rory 5y agoNot sure if this is a joke I'm not getting, but the "variants" in the linked study refer to tiny genetic sequences, not phenotypical appearance traits.
- michael1999 5y agoWhere do you think the Habsburg jaw comes from, if not a combination genetic sequences - a POLYhj if you will?
- rory 5y agoThere's no reason to believe POLYhj is any lower now than during the Habsburg dynasty. Homozygosity is independent of population-level allele frequency.
- michael1999 5y agoCharles II was infertile, so there's some reason.