It depends. Since half siblings share 25% of the same DNA, and first cousins share 12.5%. Depending on if a mother’s DNA is available to test as well, there may be other testing options that would give stronger results. In these situations we encourage you to talk with one of our Genetic Consultants at 1-855-362-5224, or email us at email@example.com and we can offer advice on your unique situation.
Category: Sibling Testing