Realistic DNA Test or Paternity Test on your smartphone.Scan your finger and then the finger of another person to determine your relationship. Joke DNA Paternity Test! You can play a joke on your friends or relatives by clicking on the buttons on the corners of the screen. Its very funny! The left gears will say that you are relatives, and the right gears will say that you have no family ties.Attention: this is a joke application, the answers received are not reliable.