Grandparent DNA testing is a genetic test designed to determine the biological relationship between a child and their grandparents. This type of test is typically performed when one or both parents are unavailable for paternity or maternity testing, making it an alternative way to confirm family connections. By analyzing the DNA of the child and their grandparents, scientists can assess shared genetic markers to establish a biological link.

The process involves collecting DNA samples from the grandparents and the child through a painless cheek swab. The DNA is then compared in a lab to determine whether there is enough genetic similarity to confirm a biological relationship. Grandparent DNA testing is often used in legal situations, such as for inheritance claims, custody disputes, or immigration cases where proof of family connection is required.

In addition to legal purposes, grandparent DNA testing can provide personal clarity and peace of mind for families. Whether it’s for resolving questions about family lineage or confirming biological ties, this test offers highly accurate results. When both grandparents are tested, the accuracy is typically over 99%, though reliable results can still be obtained with just one grandparent’s participation.