I would first realign the markers to produce the fewest differences: 12 14 15 16 12 12 12 14 15 16 When you do realign them, it's immediately apparant what has happened here: the 12 allele has been copied two extra times. I would count it as a GD (genetic distance) of one because the duplication probably happened as a single mutation event. Only about 1.5% of people tested have more that four alleles at DYS464, and you've just found one of them. To prove whether it happened as a single event or two, you can test cousins, beginning with a first cousin, then a second cousin, etc. As for upgrading, I'm always for testing 67 markers, but you may want to wait until more family members are tested. This family is an example of one where one member has six alleles at DYS464: http://dgmweb.net/DNA/Straub/StraubDNA-results-HgI1-AS5.shtml#data but it also illustrates an important point. This family is very uniform for the first 37 markers. Much of what little variation it has appears in Panel 4 (markers 38-67). You can't predict where the variation in a family will be, until after you take the tests. As an extreme in the other direction, my CARRICOs have almost no variation in the 4th panel: http://dgmweb.net/DNA/Carrico/CarricoDNA-results-HgJ2a4b.shtml#data Then again, what there is may eventually turn out to be important in connecting branches. Diana > -----Original Message----- > From: y-dna-projects-bounces@rootsweb.com On Behalf Of Lolene > Sent: Thursday, June 17, 2010 3:19 PM > To: y-dna-projects@rootsweb.com > Subject: [Y-DNA-projects] 464 question > > > 464 is the only marker which is different on a 37 marker test > for my line, kit 157653 fewer for the other kit 155979 > > the results > 464 marker > a is a match at 12 > b 12 and 14 > c 12 and 15 > d 14 and 16 > e 15 and blank (null) > f 16 and blank (null) > g both blank (null) > > Surname is the same on both tests.. View at > http://www.worldfamilies.net/surnames/c/camp > > Tester A is my line with origins in VA 1740 to 1760 > Tester B is from the Bahamas in 1875 as the earliest date. > > Haplo is l1 > > I'm uncertain how to interpret these results. Any help is > appreciated. Is > this one that getting the second person to upgrade would > help? That's my > choice, but it may not be an option, > > Lolene > > > >