Haplogroup R1b1a2: Single Nucleotide Polymorphism test: Positive for the following SNPs: P25+ M343+ M269+ M207+ M173+; Haplogroup R1b is the most common haplogroup in European populations. It is believed to have expanded throughout Europe as humans re-colonized after the last glacial period ended approximately 10-12 thousand years ago. This lineage is also the haplogroup containing the Atlantic modal haplotype.