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Re: Help for DNA Beginner
Posted by: Robert Stafford (ID *****6330) Date: June 21, 2012 at 09:03:32
In Reply to: Help for DNA Beginner by Sally Ivy of 4712

You would only need to test your brother's Y-DNA. You can take the other tests yourself. I would get my feet wet with the Y-DNA test before deciding on anything else.

The mtDNA test can be used to trace a female ancestor to your mother through an all-female line. Both males and females can take the test however. They both would have the same mtDNA as their mother, although it is possible, but unlikely, that a mutation could have occurred in one or the other.

http://www.familytreedna.com/mt-dna-compare.aspx

You would need to take the full-sequence mtDNA to use it in genealogy, although the lower resolution tests could be used to show that two people were not related through all-female lines. Because the surnames in these line change every generation, mtDNA testing does not have the same general use that Y-DNA testing has.



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