The Y-DNA Haplogroup Determination SNP Test is intended for people who wish to confirm their Y-DNA Haplogroup. If your Y-DNA Haplogroup prediction strength is weak or medium, you can take the Y-DNA Haplogroup Determination SNP Test to confirm your Y-DNA Haplogroup. When the Y-DNA Haplogroup prediction strength is “strong,” the predicted Y-DNA Haplogroup is unlikely to change.
When the Y-DNA Haplogroup prediction strength is “weak or medium,” the predicted Y-DNA Haplogroup is likely to change. The Y-DNA Haplogroup Determination SNP Test is optional and only recommended if your goal is to confirm your Y-DNA Haplogroup.