15 generations is back the 1600"s - DNA test is for best guesstimate "matches". Its for Entertainment purposes. Thats why every 5 years you get new diff results

15 generations is back the 1600"s - DNA test is for best guesstimate "matches". Its for Entertainment purposes. Thats why every 5 years you get new diff results. If you want to prove the baby is yours, or your related or your was left at a crime scene...DNA is 100% perfect