How accurate do you suppose the testing is for determining someone's racial composition by DNA analysis?

How accurate do you suppose the testing is for determining someone's racial composition by DNA analysis? Topic: How accurate do you suppose the testing is for determining someone's racial composition by DNA analysis?
July 21, 2019 / By Brier

Question: I ask because I recently had a genetic analysis done just out of curiosity's sake, and I was not at all prepared for the answer I was given. In fact, the company that did the test and I are in quite vehement disagreement over whether it could be accurate. They claim, according to their genetic analysis, I am primarily European with some African ancestry. As far as I know, most of my ancestors are Native American, with a few Europeans thrown in to the mix in the last three or four generations, but like I said, they claim there isn't a drop of Native American blood in me, but more than a trace of African. I told them that couldn't possibly be true because my mother is 3/4 Native American by lineal descent and doesn't have a European grandmother, so it would be next to impossible for her to pass on exclusively European DNA to me. Even if she inherited nothing but her mother's European chromosomes (unlikely in the extreme), she would still inherit her maternal grandmother's Native American mitochondrial DNA, and so would I. Their response was to tell me I just don't understand how DNA works. My response was to tell them I might not be a geneticist, but I am perfectly capable of using A MIRROR. White people might sometimes have a bit of trouble picking me out of a crowd, but I've never had a single Native American who mistook me for anything else. So, are the tests really as sure-fire as the company claims, or is this a case where people are trying to sell something before we actually have a thorough enough understanding to be able to make these determinations accurately? Kamien-- Yes, our family has been on the rolls since there were rolls to be on. Her father was registered as full Muscogee, and her grandmother as full Cherokee. My father is also part Choctaw, but that didn't really seem necessary to mention since his mother is Irish (not because I think Irish people are unimportant, but because that makes it theoretically possible for him to pass on nothing but European genes to me) I myself am registered as a quarter-blood Muscogee, simply because the government only allows Indians to register as members of one tribe, and then only to the degree they have ancestry in that tribe. This isn't a matter of someone simply saying "and you know, you have some Indian in you". It has been very well tracked for generations. Whoops. Apologies, Kanien. Finger slipped. Didn't mean to misspell your name. Jo-- Same thing. Seen the documentation. Carry around the ID card in my wallet. Had to get a letter from the BIA to get a Driver's License when I moved to CA (which confused the Hell out of me, since I already had an OK license, had a certified birth certificate, and was under the impression all Native Americans were made citizens in 1924). Been forced to use the health care enough to laugh at white people who resent the fact Natives get it. The tribe popped for my college education. Whole nine. If I'm not an Indian, at least two different tribal governments (couldn't tell you about the Choctaw, my grandmother and grandfather got divorced pretty early on in my father's life, so he didn't spend much time around them) and the United States government have teamed up with my family to lie to me about my racial background. Kanien-- Sorry I haven't checked up on this question sooner. The test wasn't supposed to just give me an idea of my racial background, but also tell me a lot of other little quirks about my DNA. I thought it would be fun to learn them. I wasn't really that interested in the "family history" part of the test until it turned out like that. The other results didn't turn out much better, either. According to their genetic profile, I should also be a freckle-faced ginger midget with curly hair. However, using my aforementioned mastery of the mirror technology, I am relatively sure that is also incorrect, as it appears I am slightly taller than average, have straight, dark brown hair, and almost no freckles at all. That also goes toward convincing me it is their analysis and not my family history which is in error. I would like to thank everyone for their answers. There are several good answers to this question, so rather than choose one to reward and several to slight, I am going to put this question to a vote. Thanks again.

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