Legal Question in Family Law in Texas

Depends on how old the child is. If the child is more than four years old and you were engaged in sexual activity with the woman during the probable time of conception and you ever held the child out as your own, it's your child no matter what the DNA says. That does not answer your DNA question, though. It would seem that the lab in the US and a lab in Germany would coordinate sharing DNA profiles so that neither sample had to cross the ocean in a biological form.