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Background of DNA use in Genealogy

This version was saved 17 years, 8 months ago View current version     Page history
Saved by PBworks
on August 15, 2006 at 12:24:48 pm
 

1.1 DNA testing can be performed to match other specific people and to identify general backgrounds. Paternal lines are tested by Y-DNA and maternal lines by mtDNA.

 

In Y-DNA between 10 and 67 markers are tested. A Y-DNA haplotype is derived from the markers. Haplogroups are large groups of haplotypes defining a genetic population.

http://www.ysearch.org/ has a database of 20,000 plus Unique Haplotypes from 28,000 plus records.

The choice on how many markers to test is discussed at

http://www.ftdna.com/faq2.html

It depends on the goals of closeness of matching a common ancestor.

 

mtDNA tests are based on HVR1 and HVR2 results.

http://www.mitosearch.org/ has a database of mtDNA results.

 

More DNA testing information can be found at

Family Tree DNA DNA101 with list of Tutorial Links

Also see http://en.wikipedia.org/wiki/Genealogical_DNA_test

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