Well, that's not an OTC test, is it? I'm describing what you'd see from a service like 23andme. And the difference is very clear there. I am surprised that's not something that you can see easily on forensic DNA analysis, but I did not pretend to know anything about that. (https://www.thetech.org/ask-a-geneticist/ask378 appears to be the sort of test you're talking about, while https://www.thetech.org/ask-a-geneticist/ask284 under "Some More Genealogical Fun" illustrates the sort of thing I was talking about.)