Mitochondrial DNA
Mitochondrial DNA was discovered in the 1960s by Margit M. K. Nass and Sylvan Nass by electron microscopy as DNase-sensitive threads inside mitochondria, and by Ellen Haslbrunner, Hans Tuppy and Gottfried Schatz by biochemical assays on highly purified mitochondrial fractions.
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MtDNA is DNA located in mitochondria, an organelle that is found in human cells. The mitochondria is maternally inherited by all persons, and analysis of the mtDNA can provide information about maternal ancestry. MtDNA genomes are classified into different haplogroups based on a shared common ancestor. These distinct haplogroups provide information about ancient migration patterns.