Dna tests can even detect if you are American, you need to keep up with the science.
It does more than race, but it doesn’t do religion
What?! Your DNA changes when you are naturalized? How about illegal Americans?
Dila813, I do keep up with the science, apparently more than do you. You missed my tongue firmly placed in my cheek. No, DNA cannot determine religion, and that was the point I was making because you were conflating a state of mind with a genotype. But it also cannot determine if one is an American because citizens and even residents of this country are a melting pot of peoples who have come her over the past five hundred years from all over the years, intermarried, interbred, mixed, spread out, immigrated, and are now, like no other nation on earth, a DNA melange of ethnicities, mixed ethnicities, races, mixed races, and genotypes from every place on earth.
There is no single, specific AMERICAN DNA genotype that anyone can point to and say "That is an American DNA genotype," and there probably never will be, except for, perhaps, the Native American tribes, and even their DNA shows where the ancient DNA has its roots in Asia, Australia, and the Pacific Islands, as well as European admixture, not to mention black (60% of the American cowboys in the "old west" were black!).
Only those countries who jealously guard their racial heritage could possibly hope to keep their racial purity pristine. Japan comes to mind. . . but they live on an Island and have strict immigration laws. Then there's North Korea. . .