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If you already have a kit number with FTDNA it is adviced to wait so you get the new test on the same kit number. Ordering directly from NG will give you a new kit number.
Yes, you are either DF13+ or DF63+. You can't be both. I happen to be DF63+, so hello there very, very, very distant cousin!
You are not alone looking for an SNP below DF13, we seem to have a lot of DF13* kits. Have you tried DF49? It is directly below DF13 and should be fairly big....
First, I do not know the J clade nor the admins in that project at all, so this is to be regarded as my theories. And keep in mind that I am not an expert in this field.
But if I were to comment, I would suspect the new L147 results are actually L147.5 and L147.6 (1 through 4 already...
If they are "parallel mutations", then one should be called .1 and the other .2. If I were you, I would look up the SNP on the J draft tree and see what they're called there: http://ytree.ftdna.com/index.php?nam...arent=11024115
Not that I have the exact numbers, but for SNPs that are considered stable today, I believe it's more like winning the lottery every week for an entire year.
That would be similar to the example I gave with L69. So let's say the SNP you're describing is called X123, the new occurance would be called X123.2. If it is found in many other places as well, it will eventually be useless for deep ancestry.
The SNPs we use, like DF13 is known as UEPs (Unique-event polymorphisms). Here is what Wikipedia writes about UEPs:
So yes, it is theoretically possible a DF13+ person has a son who is DF13-, but it is so unlikely that we regard it as "not possible". Some SNPs have been found to mutate...
Unfortunately, it seems there is no admin for it. If you are up for the task, you could ask FTDNA to make you an admin of that project? There are 483 kits in the project,...
Matches with a genetic distance of two over 12 markers do not show up on the matches page. It is still possible to have a match with genetic distance of two over 67 markers after and upgrade.
Those posts are old, and we later found out that FTDNA made an error and Bonham wasn't L21+ after all. It resulted in a lot of L459 testing in the L21 group before we found out about the error.
I was the first to test positive for DF63, a SNP found by an anonymous researcher. I coordinate all research on this SNP through the R-L21 project (L21 is above DF63). I recruit plausible candidates to test, and to join that project. That way, I can easily see the results...
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