The NorthernNeck-VA DNA Group has been set up at:http://www.familytreedna.com/public/NorthernNeck-VA/
This site is primarily for people who have taken the Family Finder autosomal DNA test, but participants with other DNA test (Y-DNA and mtDNA) that link to ancestors in the Northern Neck are also welcome. Jim Bartlett (email@example.com
) is the Admin for this DNA group - he is looking for 1 or 2 co-Admins to help analyze the participant matches, Common Ancestors, and atDNA segments that are tied to the Northern Neck.
DNA Tests - the three basic tests for genealogy are discussed below. They all work the same way. A living person submits a DNA sample (spit), which is analized per the test purchased. You are assigned a Kit number, and a password, and an individualized, private website. The results are then compared with all the other living people who have taken the same type of test. All those who match are listed on your website, along with their emails so you may contact them. Let's look at the different types of tests:
Y-DNA - carried only by men, and passed down, virtually unchanged from father to son - thus usually along the SURNAME line. Men who have matching DNA results, have a Common Ancestor on the SURNAME line. This is a very popular DNA test for genealogists tracing/researching a SURNAME line. you can go to www.familytreedna.com
and use the search box on the right side of the home page to find any of the thousands of surname projects, and see if any of your surnames have already been tested. Most surname projects have good, active Administrators who are generally knowledgeable about the various lines with that surname, and who will help you understand your results.
mt-DNA (mitochondrial DNA) - carried by men and women, but only passed down, virtually unchanged, from mothers to their children - thus down the all-female line to living sons and daughters. People who have matching DNA results, have a Common Ancestor on their all-famale line. But the match usually is before most of our genealogies, so usually not found. However if you have two results, suspected to be descended from the same woman, a match indicates they are, and a mis-match in dicates they are not, from the same ancestor. It's hard to use mtDNA in genealogy, and you are pretty much on your own.
Both the Y-DNA and mtDNA tests above also report your Haplogroup (for that specific all-male or all-female line). This represents a broad group of people who are related within thousands of years - your Deep Ancestry - before a genealogical time frame. Google yours, and read the wiki article. People who have different Haplogroups are not related within a genealogical time frame. My Y-DNA Haplogroup is E1b, and my mtDNA Haplogroup is T2b6, if you want an example to google.
atDNA (autosomal DNA) - carried by everyone. It makes up over 95 percent of all your DNA, and does not include the Y-DNA or mtDNA. You get atDNA from your parents, who got it from their parents, etc. So each child gets half their DNA from each parent, but different children get a different mix of their parents atDNA - it's all random. So you got a random mix of DNA from most of your ancestors back 4, 5, 6, or so generations. Further back, the random contribution from some ancestor may be too small to be reliably detected, or there may be no more atDNA from that ancestor. In any case, your atDNA matches are your cousins, and the amount of DNA they share with you provides a rough estimate of how closely you are related. If you have Colonial American ancestry, you will have hundreds of matches - some of them may be as far back as 8th to 10th cousins. But, because the atDNA is randomly passed down, you can't target specific ancestors like you can with Y-DNA or mtDNA. Like all other DNA you get the names and emails of your matches, and you have to contact them to determine your Common Ancestor(s). Be aware that some of your Common Ancestors will be behind your and/or your matches' brick walls, and you won't be able to identify them as matches without some additional research to extend the Tree(s).
Our Northen Neck DNA Group is based on testing at www.familytreedna.com
, and they have provided a project web page for the Administrators. DNA testing is also offered at www.23andMe.com
, but over 90% of genealogists have choosen Family Tree DNA for their tests.
Other than how each of these types of DNA is passed down your ancestry, you do not need to know or understand any biology or technical jargon to USE the results in your genealogy. Just remember each DNA match is your cousin who shares a Common Ancestor with you. Contact him/her, and share info, to find out how you relate.
I recommend that all serious genealogists should get DNA tested, which also preserves the DNA for future, advanced, testing.
NN DNA Project Admin