What Relationship does it Prove?
Siblingship DNA tests can be carried out to determine whether two people are full or half siblings (sisters or brothers).
- Full siblings have the same mother and the same father.
- Half siblings only share one biological parent.
Who Needs to be Tested?
- Possible siblings
Please note that there is only a 60% chance of obtaining a conclusive result in the absence of a sample from one shared parent.
- One shared parent – If a shared parent provides a sample then there is a 65% chance that the lab will be able to provide a conclusive result.
How Reliable are the Results?
This testing can provide a good indication of siblingship. (Please note that in the absence of a paternal or maternal DNA sample this form of testing may not yield a result).
Other Relationship Testing
If you would like to discuss the possibility of performing other relationship tests please contact our Client Liaison Officers on 0870 803 0999.