The lovely grandparents who love their grandchildren even more than their children are the best blessing for us. But did you know almost 25% of your DNA comes from each of your grandparents!! Interesting right? Although it is not that surprising given your parents came from them but just this knowledge alone gave the experts. A new to way determine paternity and establish a blood relation by using the Grandparent DNA testing.
Grandparent DNA testing is generally used when the alleged father is not available for testing. If they refuse to participate in a paternity test. In that case, either one of the grandparents or both can undergo a DNA test to determine. Whether they are the biological grandparents of the grandchild.
During the grandparentage DNA testing, a sample is collected by using a buccal swabs test. In this test, a sterile cotton swab is rubbed against the inner side of the cheek to collect a DNA sample and then this sample is sent to the laboratory for further testing. Since this test doesn’t involve invasive techniques it is safe for both infants and adult grandchildren.
The results arrive within 3-5 business days.
- Interpretation of the results
If the grandparent and grandchild are truly related biologically. The grandparentage index value shows the value greater than 1.0 in their Grandparentage DNA test. But in the case where they are not related biologically the grandparentage value is below 1.0.
- Accuracy of the grandparent DNA test
If both the grandparents and the biological mother participate in the test. The results are accuracy of the test increases to nearly 99.9% or even higher.