Avuncular DNA Test FAQS

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During the test, DNA samples are collected through a swab of the cheek. These samples are then analyzed to see if they share genetic similarities that would define a relationship of aunt or uncle and niece or nephew. A child inherits half their genes from their biological father, while the father shares about half of his genes with a full sibling. So, around half of the child’s paternal genes will match those of the father’s full sibling. Only a full sibling of the father can give an accurate avuncular test.

The primary reason someone would choose an avuncular DNA test is to determine paternity when the presumed biological father is absent, usually because he has passed away, is incarcerated, or is not willing to submit to standard DNA testing. Determining paternity can be a critical help in many situations, including custody and child support orders, inheritance claims, acquisition of Social Security survivorship benefits, and establishing a family relationship for immigration sponsorship.

If possible, the mother’s DNA sample is recommended as part of the child’s test. This streamlines the entire process, as it helps the lab identify and eliminate the mother’s DNA from the child’s genetic makeup. There is no additional cost for the mother’s DNA sample if it is included with the initial testing.

Results are reached based on two factors: the number of genetic matches between the child and the presumed aunt or uncle and the statistical likelihood that those matches would occur randomly. These two numbers are calculated and compared to reach a percentage of probability. The higher the percentage of probability, the likelier it is that there is an aunt/uncle relationship. Bear in mind, however, that an avuncular test doesn’t have to show 100 percent probability to be deemed scientifically accurate; if the percentage shown on the report is 90.0% or higher, it is generally accepted that the results are conclusive.

Yes! If the participants live at different addresses, different cities, or even in different states, we can send separate kits to everyone involved.

In order to send a second kit to another address simply select the option for additional kits on your order form. and enter the secondary address in the section asking where the kits are being sent to.

  • Home DNA tests are done to the same standards as our AABB legal paternity tests. Our tests are performed in a fully CAP, AABB accredited and ISO 17025/9001 certified laboratory. All of our paternity and family DNA testing services follow strict and validated procedures for processing samples to guarantee the highest degree of accuracy. Our testing process looks for 24 genetic markers ensuring you receive 100% accurate test results.

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