Haplogroup A-P305
| Haplogroup A1 | |
|---|---|
| Possible time of origin | 161,300 years BP |
| Possible place of origin | Africa |
| Ancestor | A0-T |
| Descendants | A1a and A1b |
| Defining mutations | P305 |
Haplogroup A-P305 (or A1) is a human Y-chromosome DNA haplogroup representing one of the earliest paternal lineages in the modern human Y-chromosome phylogeny. It emerged in Africa approximately 161,300 years ago.