The cost of genetic testing to determine sibling relationships varies depending on the type of test, the laboratory performing the analysis, and the specific services included. Generally, tests range from under $100 for basic ancestry tests that may offer some insight into potential sibling connections, to several hundred dollars for more comprehensive DNA analyses explicitly designed to confirm or deny biological relationships. For example, a test examining a larger number of genetic markers for a more precise sibling probability calculation will typically be more expensive than a basic ancestry test.
Confirming biological relationships between individuals through DNA analysis can be crucial for legal matters such as inheritance disputes, immigration applications, and establishing paternity or maternity when one parent is unavailable. Beyond legal applications, these tests can provide valuable information for individuals searching for biological family, offering emotional closure and a deeper understanding of personal history. The increasing accessibility and affordability of DNA technology have made these tests a more common and valuable tool for individuals and families seeking answers about their biological connections.
