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Welcome to the The ISOGG Wiki...

...a free genetic genealogy encyclopedia with 512 articles and growing.

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What is ISOGG?

The International Society of Genetic Genealogy (ISOGG) was founded in 2005 by DNA project administrators who shared a common vision: the promotion and education of genetic genealogy. Our mission is to advocate for and educate about the use of genetics as a tool for genealogical research, and to promote a supportive network for genetic genealogists.

This Wiki was established for the benefit and education of the genetic genealogy community. To contribute to this Wiki please join ISOGG (it's free!) and then register for a Wiki account. If you don't have information to contribute enjoy reading the articles on this website.

Did You Know

You can find out more about this term...

Most recent common ancestor

In genetic genealogy, the most recent common ancestor (MRCA) of any set of individuals is the most recent individual from which all the people in the group are directly descended.

The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree. In general, it is impossible to identify the specific MRCA of a set of individuals, but an estimate of the time at which the MRCA lived can often be given. Such estimates can be given based on DNA test results and established mutation rates, or by reference to a non-genetic ...read more

...in the Genetics Glossary.

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How To Search

The easiest way to find pages is to type the subject of interest into the Search Box on the top left of your screen. As you type, a drop-down list of pages will appear. Click on a suggested page to view it or click the very bottom of the list where it says "containing" to view every mention of the search term in the ISOGG Wiki. Many pages have shortcuts so that, for example, if you type in SNP you will automatically be taken to the page for single-nucleotide polymorphism and NPE will take you to the page for non-paternity event.

Contents Page and Alphabetical List

The Contents Page provides a thematic list of all the pages in the ISOGG Wiki. Additionally the Wiki can be searched from the Alphabetical List of Articles. Alternatively you can browse the pages by searching the Category Tree.

Get Involved & Help

Get involved

If you would like to add data of value to the Wiki and feel that you are not able to do this, but would like us to do it for you, please contact the Wiki Admins.

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