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The International Society of Genetic Genealogy (ISOGG) is an independent non-commercial nonprofit organization of genetic genealogists run by volunteers. It was founded by a group of surname DNA project administrators in 2005 to promote DNA testing for genealogy .
Autosomal tests may result in a large number of DNA matches to both males and females who have also tested with the same company. Each match will typically show an estimated degree of relatedness, i.e., a close family match, 1st-2nd cousins, 3rd-4th cousins, etc. The furthest degree of relationship is usually the "6th-cousin or further" level.
Haplogroup I-Z63, also known as I1a3 per the International Society of Genetic Genealogy ('ISOGG), is a Y chromosome haplogroup. It is correlated with a DYS456 value inferior to 15, but there are exceptions. [citation needed] It is a subgroup of Haplogroup I-M253.
In biology and genetic genealogy, the most recent common ancestor (MRCA), also known as the last common ancestor (LCA), of a set of organisms is the most recent individual from which all the organisms of the set are descended.
In human population genetics, Y-Chromosome haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Men in the same haplogroup share a set of differences, or markers, on their Y-Chromosome, which distinguish them from men in other haplogroups.
Since 2006 ISOGG has maintained the regularly updated ISOGG Y-chromosome phylogenetic tree. [ 36 ] [ 37 ] ISOGG aims to keep the tree as up-to-date as possible, incorporating new SNPs . [ 38 ] However, the tree has been described by academics as not completely academically verified, phylogenetic trees of Y chromosome haplogroups.
This page was last edited on 4 July 2013, at 08:40 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
A surname DNA project is a genetic genealogy project which uses genealogical DNA tests to trace male lineage.. In most cultures, there are few or no matrilineal surnames, or matrinames, [1] so there are still few or no matrilineal surname projects.