Grandparent DNA Test – What You Need To Know

DNA testing is popularly used to know your family heritage or to find your biological family. PaternityUSA grandparent DNA test is also used for a variety of reasons as to establish a genetic family relationship between the grandparent and the child or to prove paternity when the biological father is unavailable or unwilling to cooperate with a paternity test. 

In such cases, the alleged father’s biological parents use their DNA to prove the paternity of the suspected child. These samples help reconstruct the alleged father’s genetic profile. To get the best result, the DNA samples of the mother of the child as well as both the grandparents’ samples are required for testing.  

How does DNA Testing work?

To undergo DNA testing, a sample of your genetic makeup is taken. Mostly buccal swab is used, but you can also give blood samples. A cotton swab is gently rubbed on the inside of your cheeks and is used for comparing with the other party’s DNA structure. 

Place your order by visiting if you need the best grandparent DNA test. You can mention whether you need it for legal or non-legal purposes. They offer different testing options at affordable costs. When you place the order, they ship you the sterile kit to collect the samples and email you the results.  

Accuracy Of Grandparent DNA

While a paternity test gives you a yes or no result to the question of whether a man is a biological father or not, a grandparent paternity test gives you the probability of whether the relationship exists or not. The percentage of the result may vary from 0 to 99.99% and this determines whether two or more people are related by bloodlines. 

Though it is possible to take the DNA test even with one grandparent, only less genetic material will be there to compare with the child. If both grandparents can participate, more genetic sequences can be obtained to compare the genetic structure. 

The DNA testing between grandparents grandchild will be accurate as every child gets 50% of their DNA from their father and 50% from their mother. So, everyone shares 25% of their DNA with their grandparents. If you want to increase the decisiveness, the biological mother of the alleged child can also take part in the test.  

To get the strongest possible result, go for a minimum of 46 genetic markers rather than the standard 16 or 24 genetic marker test. There are some limitations to the 16 genetic markers. 

Since few genetic markers are used, chances of inconclusive results or worst case a false negative or false positive result may result. 

Many companies offer legally admissible tests as well as private (at-home non-legal) tests. When you go for an at-home test, they ship the grandparent DNA test kit to your address. Once you send the samples to their lab, they will keep you informed of the process and let you know the result through your email.  

Though legal and non-legal results are the same, you cannot use them for legal purposes. If you think you will need the result for court proceedings, you will have to order a legal DNA test.

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