A siblings DNA test determines if two or more individuals have common parents. Full siblings share both parents while half-siblings share one parent.
DNA samples from both alleged siblings are necessary. Testing of the parents also increases the accuracy of the test. Unlike paternity testing which provides very conclusive results, the results of Siblingship testing are not always conclusive, and are dependent on the genetics of the individuals being tested.
DNA samples are collected by a painless buccal (cheek) swab method. Results are reported typically within 3-5 working days.