Andreas, From my son the geneticist. I hope this answers your question. I can't make much sense of it, frankly. > http://www.ncbi.nlm.nih.gov/SNP/snp_retrieve.cgi?subsnp_id=ss0301 > http://www.ncbi.nlm.nih.gov/SNP/snp_retrieve.cgi?subsnp_id=ss0701 > > The numbers refer to specific changes in your DNA (single nucleotide > polymorphisms, SNP) that serve as markers for particular chromosomal > regions. People who are related will share common chromosomes, thus will > also have common SNP's. Distantly related people have chromosomes that are > highly diverged from each other, and have diferent SNP's. > > 10 SNP's are given because it is possible for distantly related people to > randomly share 1 or 2 SNP's, but it is highly unlikely for distantly > related people to share 10 common SNP's. > ********************************** >> >>>Someone in New Jersey needs a bit of my bone >>>marrow. ... I was chatting with them, and they told me that they use ten >>>numbers now to do genetic mapping. Out of curiosity, I asked if they >>>would >>>tell me those numbers. They said sure, and they sent me the numbers. She >>>said "now you can track anyone in history and see if they're a relative." >>> >>>It's like "47"; I know the number, but what's the question? For example, >>>there's "DRB1 Molecular 0301, 0701." >>> >>>Is that good? I mean, of course I'm above average, and if anyone has >>>0701, >>>it's me, but, what does that mean? > yrs, >>> > -- ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html