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From: tootnc...@webtv.net
Newsgroups: alt.genealogy
Subject: Re: DNA Tests
Date: Fri, 11 Dec 2009 21:10:43 -0800
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An inexpensive (relatively speaking) introduction to DNA testing might
be through the National Genographic Project. This project is shepherded
by Dr. Spencer Wells. The cost is about $100 per test. They only do
Y-dna and mitochondrial dna (mtDNA) testing.  

https://genographic.nationalgeographic.com/genographic/index.html

They only do "deep" ancestry testing. [HVR1 for mtdna and 12 markers for
Y-dna testing] However, the actual testing work is done by FamilyTreeDNA
(FTDNA) and you have the option of additional testing through them. You
can have your results uploaded from the project to FTDNA.

To see who is represented in your personal genealogy by these two tests,
here is a visual:

Run a standard ancestry test with yourself as the test subject. It will
be funnel-shaped with you at the end of the funnel. 

The upper line should start with your father, then his father, his
father, etc. Your Y-dna reflects dna ancestry ONLY from the people in
this line of your chart. None of the people in the middle contribute to
this test result. Example, your father's mother is not included nor any
of her ancestors.

The bottom line will start with your mother, then her mother, her
mother, etc. Your mtDNA reflects dna ancestry ONLY from the people in
this line of your chart. None of the people in the middle contribute to
this test result. Your mother's father is not included nor any of his
ancestors.

Of course if married couples are otherwise related there will be
overlap.

Now you need to look at some of the lines in between to figure out what
relative to test to get the Y-dna or mtDNA for those lines.

My example: Both of my parents and all of their siblings are deceased.

For my mother's mtDNA I tested myself.
For my mother's father's Y-dna, I tested her brother's son.
For my father's mtDNA, I tested his sister's daughter's daughter.
For my father's Y-dna, I tested his brother's son.

I have a line I am considering testing for the mtDNA of my mother's
father. He broke the female-to-female line down to my mother, so I need
to find others to test. His mother's sister has a family of descendants
who represent a direct female to female line from his grandmother. There
are the mother and 4 or 5 children, any of whom can be tested for this
mtDNA.