Grandparent, Aunt, or Uncle DNA Testing

This DNA test determines the likelihood statistical probability that a person is the grandparent, aunt or uncle of a child. The cost of the DNA test service includes the child and one grandparent, aunt or uncle, but you may add more as needed; for instance a second child or additional grandparent. This type of DNA testing is referred to as Avuncular DNA analysis.

When the issue of an avuncular relationship is in question, the recommended method to test the available parent of the child in question if at all possible. In situations where the child’s parent is unavailable for testing, a avuncular DNA test can still be performed.

Unlike a DNA paternity test which will always provide a conclusive result, avuncular DNA tests are different. When an avuncular DNA test is conducted, the laboratory will determine the genetic profile of the alleged relatives Based on the type of genetic material exhibited by each person, an avuncular index is determined. If the avuncular index is less than 1.00, this indicates non-relatedness. If the avuncular index is greater than 1.00, this indicates that the two tested individuals are more likely to be true biological relatives. The higher the value of the avuncular index, the greater the likelihood that the two individuals are true biological relatives. We use state of the art robotic DNA testing equipment yielding the most accurate results in the industry.

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Step 1

Step 1: Review shipping information

Please review the following important information:

All orders are shipped in plain, confidential packaging. There is nothing on our return address or packages to indicate the nature of the product inside!

For shipping in the Contiguous U.S.

  • All orders, shipping within the Contiguous USA, include a pre-paid return mailer based on your selected shipping method for NO EXTRA CHARGE
  • You may choose how you want your kit sent to you. US Mail will take approximately 7-15 business days. For faster delivery of your kit, you may choose Priority Mail, UPS overnight or our FedEx options (both UPS and FedEx require a street address and telephone number)

For shipping outside of the Contiguous U.S: Orders to Canada, Mexico, Hawaii, Alaska, Puerto Rico and recognized US territories can be shipped by US Mail, UPS or FedEx (additional international fees apply for UPS and FedEx delivery) but may not contain a prepaid return package. For INTERNATIONAL orders please call or e-mail for shipping and handling charges.

When orders are shipped: Orders received* Monday through Thursday by 12 noon Mountain Time will be shipped that day; if you choose UPS or FedEx overnight you will receive the paternity test kit the following day. Orders placed on Fridays for UPS or FedEx overnight shipment will arrive Monday. Please call to see if FedEx Saturday is available in your area before placing an order. GTL does not ship or receive on weekends and most federal holidays.

Multiple locations: You may order additional kits, which will include prepaid returns based on your selected method of shipping (for use in the Contiguous United States only). Additional kits are $30 for informational and $40 for legally binding. To order additional kits, please call GTL Toll-Free at (866) 833-6895.

* Although you may place your order before noon, GTL may not receive the order notification for several hours.

Step 2

Step 2: Select a DNA test

Please Note: All orders, shipping within the Contiguous USA, include a pre-paid return via your selected method of shipping.

Informational DNA Test

The cost of the avuncular DNA testing service includes the parent (optional), child and one grandparent, aunt or uncle, but you may add more as needed; for instance a second child or an additional grandparent.

  1. Buccal Swabs or Blood Samples?
    Learn about each.
  2. Will a parent also be tested?
  3. Additional Family Members?
  4. Add optional rush analysis:
    Full explanation of rush analysis can be found below.
  5. Would you like professional collection services?
    Learn more about professional collection and our extensive network of collection facilities.
  6. Shipping Method (we strongly recommend you choose to ship via a trackable carrier, such as UPS or FedEx. We cannot track US Mail or Priority Mail.):
Legally Binding DNA Test

If you believe you'll need your test results to be legally binding, you'll need the Legally Binding Test. Click here to learn more about this type of test. type

  1. Buccal Swabs or Blood Samples?
    Learn about each.
  2. Will a parent also be tested?
  3. Additional Family Members?
  4. Add optional rush analysis:
    Full explanation of rush analysis can be found below.
  5. Would you like professional collection services?
    Learn more about professional collection and our extensive network of collection facilities.
  6. Shipping Method (we strongly recommend you choose to ship via a trackable carrier, such as UPS or FedEx. We cannot track US Mail or Priority Mail.):
Home Collection Kit Only Option: If you prefer you may choose to purchase the Home Test Kit now, and purchase the testing services at a later date. Click here to order.

Rush Analysis Options

  • 24-Hour Release: $400
    No more than 24 business hours from receipt of samples
  • Next Day Release: $175
    By close of business on next business day following receipt of samples
  • Second Day Release: $125
    By close of business on 2nd business day following receipt of samples
  • Third Day Release: $75
    By close of business on 3rd business day following receipt of samples
Find out about all we do by reviewing a complete guide to our services, fees and refund policies.
Step 3

Review additional information

Information concerning how samples are taken, the difference between legal and informational testing, buccal versus "pin-prick" sample collection, and more is available and should be reviewed. Discover if a GTL paternity test right for you.

Our Refund Policy

Samples must be submitted within 3 months of case initiation or the case will be closed. Refunds will be issued only if applied for within 15 days of the order date. Refunds for orders involving test kits only will not be issued. Full details on our refund policy can be found here.

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Quality is Assured. Find out why AABB and ISO 17025 Accreditation is important to you. We're AABB Accredited for Parentage Testing
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We Self Certify Compliance With SafeHarbor
We're an ISO 17025 Accredited Facility
We're accredited by internationally respected A2LA
We’re an ISO 9001 Complaint Facility
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Our Kits Contain FDA Approved Components
We're Partners with New Mexico State University
We're an Accredited Testing Laboratory All Around the World
We're an Accredited Testing Laboratory All Around the World
We're the founders of a Fire and Law Enforcement Training Resource
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"I found GTL very professional, and the staff extremely helpful. We gained a grandchild! "
- Customer Testimonial from
    Linda, March 2007
"This is a great lab to do business with. The results were very fast. Thank you for providing an answer to a question that had bothered my sister and me for a long time!"
- Customer Testimonial from
    Mary, March 2006
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