Grandparentage DNA Testing

Grand-Parentage testing is used when the sample for the alleged father cannot be obtained. The child is then compared to the alleged father's parents (the child's paternal grandmother and/or grandfather). Testing can be performed between the child and one grandparent, although we recommend providing samples from both grandparents. If only one grandparent is available for testing, we would then advise providing a sample from the grandmother and the child's mother to improve the statistics and limit the chance of obtaining inconclusive results.