Y-DNA Testing

The Methodology Behind the 2014 Y-DNA Haplotree

Family Tree DNA created the 2014 Y-DNA Haplotree in partnership with the National Geographic Genographic Project using the proprietary GenoChip. Launched publicly in late 2012, the chip tests approximately 10,000 Y-DNA SNPs that had not, [...]

Am I able to download my raw data?

Family Tree DNA does not have a file format for Y-chromosome DNA single nucleotide polymorphism (SNP) results. However, your raw data, the actual values for each SNP, will be available on the Y-DNA - Haplotree & [...]

Do SNPs ever “mutate back?”

Yes. It is possible that a SNP will back mutate (change back). However, SNPs are slow changing. Thus, back mutations are uncommon.