Full- or Half-siblingship DNA Testing

Siblingship DNA tests are designed to determine if two or more individuals have common parents.

There are two types of DNA Siblingship tests for which samples can be tested. The Half-siblingship DNA Test and the Full-siblingship DNA Test.

·	Half-siblingship exists if two or more individuals have one common biological parent.

·	Full-siblingship exists if two or more individuals have the same biological parents. These services can be ordered either for personal purposes or legal purposes.

Conclusive Range: <15% exclusion or >90% inclusion.
Turnaround Time: 3-6 Weeks.
Participants: Two alleged full- or half-siblings, and any parent is optional, but strongly suggested.

Procedure: DNA samples are collected from two alleged (full or half) siblings at-home or at a DNA collection center (any parent is optional, but strongly suggested). The samples are obtained using a cheek swab (provided by GeneTree DNA Testing Center). After samples are sent to the laboratory, results will be available within 3-6 weeks. The results are guaranteed to indicate either <15% or >90% probability if a parent is also tested. If a parent is not tested, we do not guarantee that results will fall into this conclusive range, and results may vary between 1% and 99% accuracy.