We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Our daughter in law collected cheek swabs from the two patriarchs of both sides of the family to the tune of $200 each for the genographic.com site. After ten weeks each side of the family that have absolutely completely different backgrounds got the results. Each one is a duplicate of the other. A total waste of money and the results gave nothing except the routes humans used to get up to Europe. One side is totally Hispanic and the other totally Anglo Saxon but both results were the same. Don't waste your money on that DNA test.
That sounds phony. Mexican DNA has Spanish Y chromosome and Indian X. Anybody Hispanic from western hemisphere should be similar. The same for mitochondrial but I don't know if that is available outside of research sources.
"I do have some doubts about $100 dna analysis but it did find an adopted cousin. We had no idea."
There are different approaches to DNA comparisons. "Ancestry", for example, is focused on the last few generations and is meant to connect its clients with their cousins. It is a tool, not an end in and of itself, and it is not meant to be a substitute for working the paper trail. It can be very helpful for a researcher to be able to confirm an ancestor with DNA evidence, as long as it's limitations are understood. It can confirm a link but can't necessarily disprove a link. For, what it does, it is pretty effective.
Frankly, on ethnicity, I think their television commercials are a bit misleading. I was disappointed in how broad the ethnic categories are; they are not able to discern between Balts and Magyars, for example. However, the algorithms are constantly being refined and collection of data is ongoing. As the data base grows, they may be able to do so in the future.