Home / Communities / Haplogroup R1a-Y7 (Y-DNA) Haplogroup R1a-Y7 (Y-DNA) Community Haplogroup · haplogroup · ancestry · y-dna · r1a-y7 Genome project for carriers of Y-DNA haplogroup R1a-Y7. Genome project for carriers of Y-DNA haplogroup R1a-Y7. ← All Communities · Atlas · GenoConnect