Re: " Yes the classic case of the identical triplets who showed as Identical DNA - but - had quite a variance in their ethnicity (How could that be?)" IF the DNA was truly identical, as it should have been for identical twins or triplets -- then all "should" show the same admixture (ethnicity) results. But this is a complicated technology and things aren't always what they seem. Perhaps, the triplets weren't "identical". That is, the triplets didn't result from a single fertilized egg splitting into three, but from multiple fertilized eggs. That would make them fraternal triplets whose DNA isn't necessarily identical. Perhaps, aftr a single fertilized egg split, DNA recombination occurred in which a block on one-half of a chromosome pair over-wrote its complementary part. That would render some of the DNA non-identical. Perhaps, some of the ethnicity involves populations under-represented in the reference database. In such cases, the algorithms pick the "next closest thing". Bottom line: Don't believe everything on TV. There's a tendency to gloss over important details. -rt_/)

I have read about these identical triplets before, I think they actually gave them tattoos around birth and they have been famous all their lives. (one had nothing, next one had one dot and third one had two dots) http://www.kiwireport.com/identical-triplets-take-dna-test-just-discover-wor rying-truth/38/ Cheers Marg -----Original Message----- From: Ralph Taylor <rt-sails@comcast.net> Sent: Wednesday, 23 May 2018 7:31 AM To: lancsgen@rootsweb.com Subject: [LAN] Re: LANCSGEN Digest, Vol 13, Issue 68 Re: " Yes the classic case of the identical triplets who showed as Identical DNA - but - had quite a variance in their ethnicity (How could that be?)" IF the DNA was truly identical, as it should have been for identical twins or triplets -- then all "should" show the same admixture (ethnicity) results. But this is a complicated technology and things aren't always what they seem. Perhaps, the triplets weren't "identical". That is, the triplets didn't result from a single fertilized egg splitting into three, but from multiple fertilized eggs. That would make them fraternal triplets whose DNA isn't necessarily identical. Perhaps, aftr a single fertilized egg split, DNA recombination occurred in which a block on one-half of a chromosome pair over-wrote its complementary part. That would render some of the DNA non-identical. Perhaps, some of the ethnicity involves populations under-represented in the reference database. In such cases, the algorithms pick the "next closest thing". Bottom line: Don't believe everything on TV. There's a tendency to gloss over important details. -rt_/) _______________________________________________ :-+-: :-+-: :-+-: :-+-: :-+-: :-+-: :-+-: GENUKI - a virtual reference library of genealogical information. http://www.genuki.org.uk/ Contact the list administrator at LancsGen-admin@rootsweb.com :-+-: :-+-: :-+-: :-+-: :-+-: :-+-: :-+-: _______________________________________________ Email preferences: http://bit.ly/rootswebpref Unsubscribe https://lists.rootsweb.ancestry.com/postorius/lists/lancsgen@rootsweb.com/ Archives: https://lists.rootsweb.ancestry.com/hyperkitty/list/lancsgen@rootsweb.com/ Privacy Statement: https://ancstry.me/2JWBOdY Terms and Conditions: https://ancstry.me/2HDBym9 RootsWeb is funded and supported by Ancestry.com and our loyal RootsWeb community