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Paternal Relative (Y-STR) Comparison Test

This test is used to support or disprove a direct paternal connection
between 2 or more male participants.

The paternal relative (Y-STR) comparison test, also known as a paternal lineage test, can confirm your relationship to long-lost relatives and paternal ancestors. This DNA test is also often used to provide additional evidence in difficult paternity cases in which the alleged father is not available for testing—indirectly, it can tell whether or not a child is related to the alleged father's brothers and other male relatives who share a common paternal line.

The testing process is simple—the samples are taken using a painless buccal (cheek) swab, and testing is completed in 2–3 weeks. We can either send you a testing kit to collect your DNA samples at home, or if your testing has legal implications, we can use a Chain of Custody collection process where your samples will be taken by a trained professional in a laboratory or clinic.


To order a kit or to schedule an in office collection, please call one of our offices:

Houston (713) 795-9955 . Pearland  (713) 224-6650  .  San Antonio  (210) 852-2520