| Human Mitochondrial Dna Haplogroups |
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Information AboutHuman Mitochondrial Dna Haplogroups |
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In Human Genetics , Human mitochondrial DNA haplogroups are Haplogroup s defined by differences in Human Mitochondrial DNA . These haplogroups trace the Matrilineal inheritance of modern humans back to human origins in Africa and the subsequent spread across the globe. Known haplogroups are assigned the following letter codes: A , B , C , D , E , F , G , H , HV , I , J , K , L , L1 , L2 , L3 , M , N , Q , R , T , U , V , W , X , and Z . The woman who is at the root of all these groups is the Most Recent Common Matrilineal (female-lineage) Ancestor of all living humans. She is commonly called Mitochondrial Eve . EVOLUTIONARY RELATIONSHIP Precise evolutionary relationships between human mitochondrial haplogroups are subject to academic debate. For a graphical depiction of haplogroup branching, see Vincent Macaulay's mtDNA haplogroup skeleton. For information on the mutations which characterize each haplogroup, see the table of mtDNA haplogroup motifs. Table form SEE ALSO REFERENCE External links
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