> They also don't test for repetition induced diseases, so things like Huntington's won't show up. In this case, that only matters if your direct ancestors hav

> They also don't test for repetition induced diseases, so things like Huntington's won't show up. In this case, that only matters if your direct ancestors have it anyway. If your grandparents or (worse) parents have it, you probably want to get a different test (if you want to know).