Human mitochondrial DNA haplogroup
In human genetics, the human mitochondrial DNA haplogroup is the haplogroup defined by differences in human mitochondrial DNA. Haplogroups are used to live the major branch points on the mitochondrial phylogenetic tree. understanding the evolutionary path of the female lineage has helped population geneticists trace the matrilineal inheritance of modern humans back to human origins in Africa as living as the subsequent spread around the globe.
The letter label of the haplogroups not just mitochondrial DNA haplogroups run from A to Z. As haplogroups were named in the layout of their discovery, the alphabetical layout does not produce any meaning in terms of actual genetic relationships.
The hypothetical woman at the root of all these groups meaning just the mitochondrial DNA haplogroups is the matrilineal most recent common ancestor MRCA for all currently living humans. She is commonly called Mitochondrial Eve.
The rate at which mitochondrial DNA mutates is required as the mitochondrial molecular clock. it is for an area of ongoing research with one explore reporting one mutation per 8000 years.