Male Lineage Y-Chromosome DNA Test
Compare male DNA through the paternal line.
When do you need to do a Y-chromosome DNA test?
Our Y-Chromosome DNA test identifies direct male lineage. This paternal-relative (Y-STR) comparison test—also known as a paternal lineage test—can confirm a relationship to a relative on the direct-male line. This test is also used to provide additional evidence in difficult paternity situations in which a possible father is not available for testing—indirectly, it can tell you whether or not a child is related to the possible father’s brother(s) and other male relatives who share a common paternal line. The report is posted to your secure online account 5 business days after all samples have been received at the lab. There are many relationship questions that can be answerered by Y-Chromosome DNA testing. Contact our experts today for a free consultation to see if this test is right for your unique situation.
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Because only males have the Y chromosome, this analysis cannot be performed for females. Contact us for other testing options.
- To confirm the truth about a biological relationship with a male relative or ancestor along your direct male line
- To help confirm paternity between a male child and a possible father
- Medical history
The Y-STR comparison DNA test is based on the fact that the Y chromosome is passed from father to son relatively unchanged through many generations. Although the Y chromosome is only found in males, women can also indirectly participate in a Y-Chromosome DNA test if they are interested in determining their paternal relatives. They would need to ask a close biological male relative—father, brother, paternal uncle, or paternal grandfather—to contribute a sample for comparison testing with her potential paternal relative or ancestor.
In a Y-Chromosome DNA test, specific locations on the Y chromosome are examined to generate a Y-STR profile for each male tested. Males who are related through their fathers will tend to have the same or similar Y-STR profiles, and males who are not related will likely have different Y-STR profiles.