A grandparentage DNA test determines whether a couple could be the biological grandparents of a child. It is an indirect way to determine family relationships when an alleged father is not available for a paternity test. Grandparentage test results may be used as proof in Social Security benefit and other inheritance claims as well as in some immigration cases.
In the test, the child’s DNA profile is compared with the DNA profiles of the alleged father’s biological parents. Since a child inherits half of his/her DNA from the mother (maternal side) and half from the father (paternal side), the paternal half should match DNA passed down from the alleged grandparents. The mother’s participation is encouraged to expedite analysis; motherless grandparentage tests take longer to complete because of the extended analysis required.
In a maternity test, the child, alleged mother, and biological father are tested. The father’s participation in the maternity test helps to exclude half of the child’s DNA, leaving the rest for comparison with the alleged mother.If the father is not available, we can perform a fatherless test, which involves additional analysis, without additional charge.
Samples for a DNA test are routinely collected using the painless and simple buccal swab, similar to a cotton-tipped swab, The swab is rubbed against the inside cheek of the test participant, and loose cheek cells adhere to the swab. Unlike regular cotton swabs, Pur-Wraps® provides a consistent surface for sample collection and DNA extraction.
SSamples are collected using a chain of custody documentation process that ensures your results will be accepted by courts and other government agencies. Part of this process requires that a neutral third-party, such as a local laboratory or hospital, collect your samples. When you come to the sample collection appointment, you will be asked to do the following to meet the chain of custody requirements:
Present government-issued identification for the adults
Present one of the following for minors: birth certificate or social security card
Be photographed and fingerprinted
Complete a Client Identification and Consent Form (the minor’s consent form should be signed by the legal guardian)