Haplogroup O-CTS7300 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2b1a2a1a1a1a1a1 |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 317 |
| Estimated age | 3,300 years |