Haplogroup J-BY74 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J1a2a1a2d2b2b2c4c2~ |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 96 |
| Estimated age | 4,350 years |