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Home Articles Genetics and Science What is a Haplogroup?

What is a Haplogroup?

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When a population of individuals share genetic markers, passed down from an ancient but common ancestor, they make up a "haplogroup".

Below is a brief answer given by FamilyTreeDNA to the question "What is a haplogroup?"

"One way to think about haplogroups is as major branches on the family tree of Homo Sapiens. These haplogroup branches characterize the early migrations of population groups. As a result, haplogroups are usually associated with a geographic region. If haplogroups are the branches of the tree then the haplotypes represent the leaves of the tree. All of the haplotypes that belong to a particular haplogroup are leaves on the same branch. Both mtDNA and Y-DNA tests provide haplogroup information, but remember that the haplogroups nomenclature are different for each."

Y-chromosome DNA Haplogroups of Man

Below is a table of yDNA Haplogroups, consisting of many sub-groups descending from what are know as "super-haplogroups", such as F, K, and P.

Y Chromosomal Adam (Noah)
A B C * F
    D E G H * K
        I J L M * P
            N O R Q
               

For more details about what Haplogroups are, click here to be directed to Wikipedia's portal on the subject.

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Last Updated ( Monday, 07 April 2008 14:59 )