Quote Originally Posted by St. Amish View Post
The reason I ask is because my family members have tested with different companies at different times, to match profiles. Two companies, FamilyTreeDNA, and EthnoAncestry, were testing for different profiles, but used some of the same markers, each coming up with different values for the markers that they both happened to be testing with.

With something like DNA, there's no possible way that I could check the work myself, so I wonder if one or both of the services got it wrong.
I haven't heard of that before. That's an interesting issue.

There are some genetic genealogical groups at Yahoo Groups. You might post a query there about this. They are:

DNA-ANTHROGENEALOGY at http://groups.yahoo.com/group/DNA-AN...guid=270596405

DNA-NEWBIE at http://groups.yahoo.com/group/DNA-NE...guid=270596405

DNA-Testing · DNA Testng, Ancestry, And Archeology at http://tech.groups.yahoo.com/group/D...guid=270596405

Good luck!