> From: Mary Guler > Sent: Saturday, February 11, 2012 12:24 PM > > We have tested  4 siblings, a first cousin once removed, two second > cousins and one third cousin from the same line.  The last person > tested was the third cousin.  All of us match one another, except > for the third cousin.  She and I do not match each other.  > (I am the one who paid for her test....LOL!)  This is > the perfect example of the randomness of autosomal DNA inheritance > :o) > > Mary Mitchell Guler Does this last third cousin not match just you? Or does she not match *any* of the other seven? Are all of the seven mutually matching all of the other seven? If not, how many of the seven does each one match? I paid for all four of these tests, so I can look at the matching for each of the other three, individually, from their perspective as well as mine. The three of us are mutually matching (each of the three of us matches the other two, from each individual perspective). The fourth matches none of the other three. I'm not trying to be argumentative. I truly want to understand how to view my situation compared to what others have experienced. I understand that, at this distance, random variation can mean a non-match. I guess what I'm asking is at what point does the number of non-matches take us beyond the tails of the probability distribution and into the realm of "there ain't no underlying relationship here." Diana