One study has found haplogroup A in samples of various Khoisan-speaking tribes with frequency ranging from 10% to 70%.
Human mitochondrial DNA haplogroup | haplogroup | Human Y-chromosome DNA haplogroup | Haplogroup O-P31 (Y-DNA) | Haplogroup O-P31 | Haplogroup O-M95 (Y-DNA) | Haplogroup O-M95 | Haplogroup |