Paternal lineage
Explore whether two males share a paternal family line.
DNA Testing
Y-STR DNA Testing
Compare two males to explore whether they share a common paternal lineage.
Informational $385 · Legal $399 · Confidential
Understanding your options
What y-str dna testing is
Y-STR testing examines markers passed through the paternal line and can help evaluate whether males may share that lineage.
It does not identify the exact relationship by itself, so we review the question and participants before collection.
Reasons for testing
Why people choose this test
Genealogy questions
Add DNA information to family-history research.
Unavailable relatives
Consider a paternal-line comparison when closer relatives cannot test.
Professional collection
Use documented collection appropriate to the requested purpose.
Participants and samples
Who needs to be tested
Two or more males provide cheek swabs.
Participants should be connected through the paternal line being explored.
What to expect
How it works
- 1
Reach out
Tell us what you hope to learn and whether the results are for personal or official use.
- 2
Schedule collection
We confirm the right test, participants, documents, and a convenient appointment time.
- 3
Collection appointment
Samples are collected carefully and identities are documented when chain of custody is required.
- 4
Laboratory analysis
The collected samples are securely prepared for DNA analysis.
- 5
Confidential results
Results are delivered privately, and our team can answer process-related questions.
Testing options
Informational vs. legal testing
Informational
$385
Standard turnaround: 5 business days
For personal knowledge and peace of mind. Results are not intended for court use.
Legal / court-admissible
$399
Standard turnaround: 5 business days
For official matters when collected under documented chain of custody with identity verification.
Appointment preparation
What to bring
For a legal case, each adult should bring a valid government-issued photo ID.
Bring the child's birth certificate or identification when applicable, with a parent or legal guardian present for minors.
Informational testing generally requires less documentation than legal chain-of-custody testing.
Bring any court, agency, or case paperwork connected with the request.
We'll confirm exactly what you need when we schedule.
FAQ
Common questions about y-str
Y-STR inquiry
Request y-str testing
Share a few details so our team can explain the right collection option, pricing, and next steps.