Interpreting DNA test results comparing a potential grandparent and grandchild involves analyzing the shared genetic material to determine the likelihood of a biological relationship. This analysis examines specific genetic markers passed down through generations. For example, a grandmother will share approximately 25% of her DNA with her grandchild. Deviations from this expected percentage can provide insights into the biological connection.
Establishing grandparentage through DNA analysis offers crucial information in various situations, such as confirming biological relationships when a parent is unavailable for testing, resolving legal questions regarding inheritance or custody, and providing individuals with a deeper understanding of their family history. Advancements in genetic testing technologies have made this process significantly more accurate and accessible in recent years. This accessibility has broadened the potential applications for grandparentage testing, ranging from personal genealogical research to legal proceedings.
