AVUNCULAR

Testing the alleged father’s relatives, usually brothers and sisters, is known as an avuncular test and is an alternative means for a paternity DNA test in a scenario where the alleged father is unavailable for testing. An avuncular test is usually the next best option when a grandparentage test is not possible. In an avuncular test, the laboratory will advise sending in the mother’s DNA samples as well. The test will calculate an avuncular index which will tell whether there is a biological relationship between the alleged father’s child and the child’s paternal aunt and/or uncle.  The statistical probability will be an inclusion of relationship if it is 80% or higher and an exclusion of relationship should it be 20% or lower. Further information on Avuncular Testing can be found by visiting Aunt-Uncle DNA Testing.

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