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In situations where the alleged father is unavailable for testing, such as if he is deceased or unwilling to participate, the alleged father's parents can be tested to determine whether they are the true biological grandparents of the child. When conducting a grandparentage DNA test, it is recommended to test both grandparents (the grandmother and the grandfather) in order to obtain the most conclusive results. If this is not possible, a grandparentage test can be conducted by testing only one grandparent. The sample of a common parent (normally the Mother) is also recommended to strengthen the results of the test.
Technically, we inherit half our genetic material from our father and half from our mother. We then pass this same genetic material to our children and the process goes on from generation to generation. This genetic inheritance is what makes this type of relationship testing possible.
Two Grand-Parentage Testing Options are Available Order here
It is possible to test a single grandparent in a single grandparentage test should the other grandparent be unavailable for testing. A single grandparent DNA test is not the ideal but it can provide the necessary genetic information to reconstruct the DNA profile. Nevertheless, the genetic information provided by one grandparent in incomplete. The number of genes shared between the tested grandparent and the tested grandchild are compared and common genetic markers between the two DNAs are located. Including the mother’s DNA will further substantiate the results.
The more recommended test involves testing both the grandparents in a duo grandparentage test. This allows a more complete reconstruction of the DNA profiles and thus, makes results more reliable and conclusive. The probability of determining is paternity is high but not as absolute as a paternity DNA test. As in most of our DNA relationship tests, the mother’s DNA is recommended in this test though not necessary.
The Grandparentage DNA test is priced from as little as £269. Results are available in 5-7 working days from receipt of samples at the laboratory.
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