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Results tagged with snp
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user 2576
For questions about Single Nucleotide Polymorphisms (SNPs) as they pertain to genetic genealogy testing.
7
votes
Accepted
If you plan on getting a Big Y test, is there any value in going beyond yDNA-37?
FamilyTreeDNA admits this occurs and is one reason they also recommend SNP packs on top of BigY tests. SNP packs are prescribed tests like the Y111. …
- 5,591
3
votes
After a Big-Y test on FamilyTreeDNA does it make sense to order further SNP tests?
SNP Packs are prescribed (vs. discovery tests) that are programmed to look for the presence of specific SNPs. … I have only ordered an SNP pack once after a BigY as a verification of a result..and had no different results. …
- 5,591
7
votes
3
answers
3k
views
Converting AncestryDNA 1.0 file format to 2.0 and vice-versa?
Each line
corresponds to a SNP. Column one provides the SNP identifier (rsID where
possible). … Each line
corresponds to a SNP. Column one provides the SNP identifier (rsID where
possible). …
- 5,591
3
votes
1
answer
5k
views
What is considered a strong match on a Big-Y DNA test?
use it for genealogy (and not just research purposes) but FamilyTreeDNA recently in the last few months added "matching".. the strongest match so far is 26,768 matching SNPs with 2 known non-matching SNP … markers and 26,516 with 1 known non-matching SNP marker. …
- 5,591
3
votes
Accepted
What is considered a strong match on a Big-Y DNA test?
My understanding is as a general rule of thumb 'to start with' used by some of the more advanced Big-Y/Y-Full groups in terms of known SNP differences as FamilyTreeDNA displays the information is that … FamilyTree DNA will not display the individual as a match at all if the Known SNP Difference is greater than 10. …
- 5,591