Grandparent, Sibling & Avuncular DNA Testing Miami | Prove Paternity

Grandparent, Sibling & Avuncular DNA Testing

Prove paternity without the father. Reconstruct biological family ties using grandparents, siblings, aunts, or uncles.

🏛️ AABB Accredited Laboratory

⚖️ Court & Estate Admissible

🧬 Advanced Matrix Processing

Who is being tested with the child?

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Grandparent(s)

Testing the alleged father's parents against the child.

👨👩‍🦰

Aunt, Uncle, or Sibling

Testing the alleged father's full sibling or known child.

Select Testing Category

⚖️

Legal Court-Admissible

Starting at $499

Notarized for estates, Social Security, and custody.

🏠

Peace of Mind

Starting at $399

Strictly private for personal knowledge only.

Select Collection Method

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Standard Clinic Visit

Visit Miami Beach or Wynwood.

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Private Mobile Concierge

Collector travels directly to you.

Review Your Selection

Order Summary

Relationship Type:

Test Category:

Collection Method:

Base Test Price:

Sales Tax (7%):

+$0.00

Card Surcharge (3.5%):

+$0.00

Results Delivery Timeframe: 3-5 Business Days

Total: $0

How Relationship Testing Works

When an alleged father is missing, deceased, or unwilling to participate, we can still establish a biological link to a child by testing his immediate blood relatives.

Because a child inherits exactly 50% of their DNA from their father, that father's genetic markers are shared with his own parents (the child's grandparents) and his full siblings (the child's aunts/uncles/siblings). By testing these relatives, our AABB-accredited laboratory can reconstruct the missing father's DNA profile and confirm paternity.

Note: We strongly recommend including the child's Mother in relationship testing. Her DNA helps the lab isolate which genes the child inherited from the maternal side, making the paternal search much more precise.

Choosing Your Testing Category

⚖️ Legal Court-Admissible

Requires strict Chain-of-Custody.
Government-issued ID required.
Collected by a neutral 3rd party.
Notarized AABB results.
Valid for Social Security, Estates, & Custody.

🏠 Peace of Mind

No ID required (Anonymous).
Does not follow Chain-of-Custody.
Results are scientifically identical.
Cannot be used in court or for legal claims.
Strictly for personal knowledge.

Relationship Testing FAQs

What is an Avuncular DNA Test?

"Avuncular" simply refers to the relationship between an aunt or uncle and their niece or nephew. This test determines if a child is biologically related to the full sibling of the alleged father.

Can this test be used for Social Security survivor benefits?

Yes. If you select the Legal Court-Admissible option, the results are processed through an AABB Accredited Laboratory and officially notarized. This document is fully valid for Social Security Administration (SSA) claims and Florida probate/estate courts.

Do we need both grandparents for a Grandparentage test?

While testing one grandparent is sufficient to run the analysis, testing both the paternal grandmother and grandfather provides the highest level of genetic accuracy, as they hold 100% of the missing father's DNA between them.

Certified Local Collection Centers

📍 Miami Beach Center
1680 Michigan Ave, Suite 700
Miami Beach, FL 33139
🕒 Hours: Mon-Fri 9:30 AM - 3:30 PM

📍 Wynwood Center
252 NW 29th Street
Miami, FL 33127
🕒 Hours: Mon-Fri 9:30 AM - 3:30 PM

👉 Start Your Test Now