Timeline for Genetic pros or consequences of children born to parents of mixed nationalities?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 14, 2017 at 13:32 | vote | accept | user31840 | ||
| Apr 26, 2017 at 3:58 | comment | added | Bryan Krause♦ | @jamesqf Exactly why I said "very few" groups - those are all fairly special cases. However there are also some groups of European descent that are slightly isolated from other Europeans, including some Amish communities or Ashkenazi. The other point I was making is that inbreeding and outbreeding don't have specific definitions, it's all relative. | |
| Apr 26, 2017 at 3:36 | comment | added | jamesqf | @Bryan Krause: I think you possibly could find such groups, depending on how much isolation is enough. Say Japanese and the !Kung people of southern Africa, or Inuit and Australian aborigines. But any two populations of mostly European descent, no. | |
| Apr 25, 2017 at 1:22 | comment | added | Bryan Krause♦ | @jamesqf Yes I'd agree that intermingling and immigration means there are very few groups of humans that are truly isolated from each other over an appreciable number of generations, although I don't think there is a specific definition for outbreeding, or inbreeding for that matter, it's all relative. | |
| Apr 25, 2017 at 1:11 | comment | added | jamesqf | Given a couple of centuries of European immigration to the US (and presumably a good deal of intermingling of European peoples in previous millenia), could mating between a (mosty caucasian) American and a Russian really be consideed outbreeding? | |
| Apr 24, 2017 at 21:58 | comment | added | Bryan Krause♦ | @user31840 That's my understanding - the point, though, is that being a female immigrant is likely to be correlated with all of those other factors, and based on our understanding of not only the unlikelihood of outbreeding causing autism (for the reasons I state later) as well as the poor relationship between autism and purely genetic causes, those are much better explanations than outbreeding, especially because, like the other answer I linked notes, there isn't really any evidence for outbreeding depression in humans in any circumstance. | |
| Apr 24, 2017 at 21:26 | comment | added | user31840 | The site has apparently queued my upvote, but you got me--I skimmed the article and missed those alternate theories. However, would it not be true that statistic (58% increase) describes the mere condition that the mother was an immigrant...and the correlation does not regard why, which the alt theories then consider? Maybe it can be immunization and/or maybe it can be stress...or even something else, but the fact is, being a female immigrant was still the common denominator...no? | |
| Apr 24, 2017 at 21:07 | history | answered | Bryan Krause♦ | CC BY-SA 3.0 |