Sibling, Grandparent & Family Relationship DNA Testing – Legal & At-Home

Legal tests processed by AABB-accredited partner labs. Results in 2–5 days.

Discover biological family connections with GameDay DNA’s comprehensive relationship DNA testing. Legal (chain-of-custody) DNA tests for sibling, grandparent, avuncular, and more are always performed by AABB-accredited laboratories we partner with.

All at-home and informational tests are analyzed in the same accredited labs, ensuring accurate and confidential family verification.

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Available Family Relationship DNA Tests

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Maternity DNA Testing

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Grandparent DNA Testing – Legal & At-Home Options

Order Grandparent DNA Test
Two siblings sitting together indoors, representing the accuracy of sibling DNA testing for confirming biological relationships

Sibling DNA Testing – Legal, At-Home & Twin Zygosity

Order Sibling DNA Test
 
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Avuncular DNA Testing (Aunt/Uncle)

  • Legal avuncular DNA testing available

  • Aunt/Uncle test as alternative to paternity

  • Combined family testing for more accuracy

  • Enhanced Accuracy Options

Order Avuncular DNA Test

Key Benefits of Our Relationship DNA Testing

  • Fast results in 2–3 business days

  • Nationwide DNA testing centers

  • Flexible payment plans available

  • Free DNA testing consultation with experts

  • Court-admissible/legal options

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Why Choose Us for DNA Relationship Testing

At GameDay DNA, your samples are tested in top U.S.-based partner labs certified by AABB, CAP, and CLIA. These accreditations ensure the highest standards for legal and at-home family DNA testing. We follow strict protocols for accurate, court-admissible, and confidential results you can trust.

How Our Relationship DNA Testing Process Works

  • Green circle with a phone icon representing initial consultation with support for DNA testing services

    Initial Consultation with Support

  • Yellow circle with a calendar icon symbolizing scheduling and financial considerations for DNA testing

    Scheduling & Financial Considerations

  • Yellow circle with a DNA strand icon illustrating the DNA sample collection procedure for accurate testing

    DNA Sample Collection Procedure

  • Orange circle with an envelope icon representing result delivery and interpretation for DNA testing services

    Result Delivery & Interpretation

Frequently Asked Questions About DNA Relationship Tests

  • You can schedule your DNA test at any of our nationwide partner collection centers, or choose a convenient at-home test option.

  • A mother’s DNA is not always required, but including it can increase the accuracy of sibling, grandparent, or avuncular DNA test results.

  • We typically use non-invasive cheek swabs for DNA testing, but other sample types may be available if needed.

  • A cheek swab is easy: just gently rub the swab inside your cheek for 30 seconds. Detailed instructions are included with every test kit.

  • Test results are delivered securely online or by mail, typically within 2–5 business days after samples are received at the lab.

  • Yes, legal DNA tests processed by our AABB-accredited partner labs are court-admissible when chain-of-custody procedures are followed.

  • Yes, we offer flexible payment plans to make DNA relationship testing affordable for every family.