Haplogroup J-Y20305 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J2a1a1a2b2a3b1b2~ |
|---|---|
| Defining mutations | 4 |
| Downstream branches | 4 |
| Estimated age | 7,700 years |