Home / Communities / Haplogroup M2a'b (mt-DNA) Haplogroup M2a'b (mt-DNA) Community Haplogroup · haplogroup · ancestry · mt-dna · m2a'b Genome project for carriers of mt-DNA haplogroup M2a'b. Genome project for carriers of mt-DNA haplogroup M2a'b. ← All Communities · Atlas · GenoConnect