Thank you, Pat! Barton On Fri, Aug 11, 2017 at 10:03 AM, Kith-n-Kin wrote: > Barton > Excellent explanation of the randomness of autosomal DNA! > Thanks, > Pat Dunford > Tucson > >> -----Original Message----- >> From: ROOTS [mailto:roots-bounces+kith-n-kin=cox.net@rootsweb.com] On >> Behalf Of BARTON LEWIS >> Sent: Friday, August 11, 2017 6:45 AM >> To: Web Roots Subject: Re: [ROOTS-L] FTDNA >> >> Dear Lori, >> >> The In Common With ("ICW") tool shows you the people that share DNA >> with >> both you and your selected match. There are several possibilities >> for how these >> people are matching you and your match. Let's say your match's name >> is Mary, >> and you run ICW Mary, and you and Mary have an ICW match named Tom: >> >> 1. Tom is related to you and Mary through the same common ancestor >> that >> you share with Mary. >> >> 2. Tom is related to you through a different ancestor than you share >> with Mary, >> and related to Mary through a different ancestor than she shares with >> you. >> >> If you, Tom and Mary are matching on the same segment of DNA, then >> you are >> sharing a common ancestor. If you're lucky, you'll be able to >> confirm who that >> is by looking through your trees. However, sometimes (actually most >> times) >> you won't be able to find the common ancestor because it will be too >> far back in >> time, or your tree or your match's trees will have gaps in them. >> >> Segments below about 30 cM, and even up to 50 cM, can be very >> distant. I >> generally don't work with segments that are smaller than 20 cM, >> unless there is >> a much larger segment overlapping. >> >> Just because you, Tom and Mary don't share DNA on the same segment >> doesn't >> mean you're not sharing a common ancestor. DNA is passed randomly >> over all >> chromosomes, and a distant ancestor can pass DNA to one descendant on >> one >> chromosome and to another descendant on another chromosome. >> >> Hope this helps. >> >> Barton >> >> >> On Thu, Aug 10, 2017 at 06:23 PM, Lori wrote: >> >>> I am still working on finding the parents of my elusive 3rd >>> gr-grandfather Ephraim Fisher. I now have someone to work with. >>> She >>> is also a descendant. >>> I tested at Ancestry, uploaded to gedmatch and also sent my results >>> to >>> FTDNA, where I found my cousin. >>> >>> I have read some of the questions and answers in the learning >>> section >>> but am still unclear. I click on my cousin's name and then click on >>> 'in common with' and this brings up about 68 names. Does this mean >>> there are 68 people who have 'something' in common with the two of >>> us?? I use the chromosome browser and see several of the 68 all >>> meet >>> at chromosome 8. Does this mean we have a common? I understand it >>> may not be Fisher but the large family he married into. >>> >>> >>> Also, top of the list of 68 is a lady I was able to talk to on the >>> phone. >>> She and I connect only on chromosome 11 but nowhere else. So >>> another >>> question is why does she appear on the list of 68? From my reading >>> I >>> think that maybe I should ask my known Fisher cousin to look at her >>> matches to see if she connects with this other person. Correct? >>> >>> There is a lot written about this subject but it mostly seems to be >>> about the science behind it. >>> >>> ~Lori >>> >>> >>> ===== >>> If you would prefer digest mode to mail mode, drop a note to >>> roots-admin@rootsweb.com and ask for the digest... >>> >>> ------------------------------- >>> To unsubscribe from the list, please send an email to >>> ROOTS-request@rootsweb.com with the word 'unsubscribe' without the >>> quotes in the subject and the body of the message >>> >> >> ===== >> If you would prefer digest mode to mail mode, drop a note to roots- >> admin@rootsweb.com and ask for the digest... >> >> ------------------------------- >> To unsubscribe from the list, please send an email to ROOTS- >> request@rootsweb.com with the word 'unsubscribe' without the quotes >> in the >> subject and the body of the message > > > ===== > If you would prefer digest mode to mail mode, drop a note to > roots-admin@rootsweb.com and ask for the digest... > > ------------------------------- > To unsubscribe from the list, please send an email to > ROOTS-request@rootsweb.com with the word 'unsubscribe' without the > quotes in the subject and the body of the message >