![]() |
genealogy question - Printable Version +- MacResource (https://forums.macresource.com) +-- Forum: My Category (https://forums.macresource.com/forumdisplay.php?fid=1) +--- Forum: Tips and Deals (https://forums.macresource.com/forumdisplay.php?fid=3) +--- Thread: genealogy question (/showthread.php?tid=162776) |
Re: genealogy question - btfc - 01-12-2014 "This is a really good discussion." Yes, it is! I saw a news piece recently where the reporter was tested by three different DNA testing services and got different results from each. No luck finding it with Google so far. ![]() Re: genealogy question - PeterB - 01-12-2014 btfc wrote: Not exactly the one you were thinking of, but close: http://www.aarp.org/money/scams-fraud/info-02-2011/burley_case_of_mistaken_ancestry.html Re: genealogy question - srf1957 - 01-12-2014 DeusxMac wrote:-That's the part I was wondering about. :-) I've been using the tools on the 23andme website tonight and have made positive links with two other families. So far it has been a fun situation. Monogomy has nothing to do with it. It doesn't matter how many women your father "slept" with, you only inherit from your actual mother. And vice versa. Who was talking about 4g grandfather? Without knowing the persons involved could be remarried , adopted preexisting condition. That is why most genealogical tests go through matriarchal lines. Re: genealogy question - davemchine - 01-12-2014 Since 23andme has been a semi-frequent topic here I thought others would enjoy seeing what kind of results it provides regarding genetic heritage. I'm quite sure PeterB is right and the results are not conclusive. I paid $99 and didn't really expect the results to be perfect. It is interesting though and my results do agree with what I've been told regarding our families past. My next door neighbor did the same test and received very surprising results. She used those results to find new family members and fill in the gaps of her own genealogical records. It's all very interesting. Re: genealogy question - DeusxMac - 01-13-2014 srf1957 wrote:-That's the part I was wondering about. :-) I've been using the tools on the 23andme website tonight and have made positive links with two other families. So far it has been a fun situation. Monogomy has nothing to do with it. It doesn't matter how many women your father "slept" with, you only inherit from your actual mother. And vice versa. Who was talking about 4g grandfather? Ah, I know it's way up there at the top, but the original poster was. Re: genealogy question - Janit - 01-13-2014 PeterB wrote: It would be nice to see the reasoning they use to yield these numbers. No doubt they use oversimplified percentages because the general public would choke on any technical discussions of probabilities and haplotypes etc. It is also easier for customers to identify with particular places or nationalities than with haplotype distribution probabilities. Genetic markers move through populations and through space with time. Migration does not negate origin conclusions, it is part of the package. There have been some interesting studies of European Jews. Complementary studies of Y chromosome DNA and mitochondrial DNA suggest that many of the Jewish men who migrated into the area came without wives and married local European women. In general many European women were absorbed into the Jewish community, and many fewer European men married in. Re: genealogy question - haikuman - 01-13-2014 ![]() This is indeed a great topic and most interesting discussion Thanks for getting this started davemachine ~!~ Rudie *(:>* Re: genealogy question - PeterB - 01-13-2014 Janit wrote: Right, but it depends on how you define "origin". Saying someone's origin is Scandinavian is misleading, because that implies that only people from that part of the world could have those markers/haplotype, which is simply wrong. Also, we're all just mutated Africans anyway... so it also depends exactly how far back you want to go, when you say "origin". Re: genealogy question - Janit - 01-13-2014 PeterB wrote: Right, but it depends on how you define "origin". Saying someone's origin is Scandinavian is misleading, because that implies that only people from that part of the world could have those markers/haplotype, which is simply wrong. Also, we're all just mutated Africans anyway... so it also depends exactly how far back you want to go, when you say "origin". Indeed. The results above do say they "reflect where your ancestors lived 500 years ago," drawing from 31 populations. My interpretation of the results is that 60.5% of his tested loci were most commonly spread out in a large area of Northern Europe 500 years ago, 1.5% of his tested loci were highly focused in Scandinavia 500 years ago, etc. Of course, the ancestor carrying those "Scandinavian" loci might have left Scandinavia for Europe 550 years ago and there would be no way know. Nevertheless, there appears to be some low level of relatedness to the Scandinavian population. Re: genealogy question - sekker - 01-13-2014 As a geneticist, I'm ok with the genealogy definition they use. It's just an average estimate, not an absolute path in terms of origin that they are describing. This is for entertainment use. What I object to are the health predictions - there, the company's approach is not nearly sufficiently precise. I fear that there are people who take their comments far too literally. |