Haplogroup J-Y37121 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J2b2a1a1a1a1a1b1a~ |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 2 |
| Estimated age | 3,600 years |