Grand-parentage Analysis Grand-parentage testing is designed to provide definitive answers when trying to establish a biological relationship between an individual and the alleged grandparents. This test is usually used as an
indirect way of establishing Paternity or Maternity. Unlike the Sibling analysis, it will indicate the identity of the biological parent i.e. If a test establishes a biological relationship between a child and the alleged grandparents, then the child’s biological parent has to be one of the grandparents’ children.
However, if for example there are two alleged fathers that are brothers, this test will not be able to distinguish between them. Only a Paternity DNA test will do that.
There are two different types of Grand-Parentage testing: Single Grand-parentage DNA Analysis
This test is ordered when the analysis involves ONE alleged biological Grandparent. The cost of the test includes ONE Grandparent and one grandchild. It is highly recommended that a known parent of the child provides a DNA sample as this will greatly improve overall accuracy and the chance of a conclusive result. - The parent in a Single Grand parentage analysis will be processed for FREE.
- Additional children and their known parents (if different) are each charged at the additional person rate.
- Conclusive Range: This test can indicate greater than 90% probability (for
inclusions) or 15% probability (for exclusions) of a grand-parentage relationship.
Duo Grand-parentage DNA Analysis
This test is ordered when the analysis involves BOTH alleged biological Grandparents.
The cost of the test includes BOTH Grandparents and one grandchild.
It is highly recommended that a known parent of the child provides a DNA sample as this will greatly improve overall accuracy and the chance of a
conclusive result. - The parent in a Duo Grand-parentage test is charged at the additional person rate. They are NOT included for free.
- Additional children and their known parents (if different) are each charged at the additional person rate.
- Conclusive Range: This test can indicate greater than 99% probability (for inclusions) or 0% probability (for exclusions) of a grand- parentage relationship.
How does Grand- parentage analysis work?
During a Grand-parentage DNA test, the DNA profile of each alleged Grandparent is obtained and compared to the DNA profile of the child in question.
For a person
to be a biological grandparent, it means that their own biological child is the biological parent to the grandchild in question. To make an appointment for a Grand-parentage DNA test please contact us.
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