Grandparentage DNA Test
Grandparent DNA tests can be used to establish a biological relationship between an individual and one or both of their alleged grandparents.
A DNA profile for each individual is produced and the alleles observed at each STR marker are compared; biologically related individuals tend to have more DNA in common than unrelated individuals.
Statistical analysis is performed taking into consideration the number of matches observed between the tested individuals and the frequency of the observed allele within the relevant population. The calculations performed result in a probability of relatedness:
- POSITIVE: A result of 90-99.99% provides very strong evidence that a grandparent/grandchild relationship does exist;
- NEGATIVE: A result of 0-10% is not supportive of a grandparent/grandchild relationship;
- INCONCLUSIVE: Results falling within the 10-89.99% range are deemed to be inconclusive because it is not possible to determine conclusively if a biological relationship exists between the tested individuals.
An inconclusive result could be due to a low number of matching alleles between the tested individuals, alternatively, the alleles that are shared between the tested parties could be extremely common within the relevant population. Analysis of additional STR markers may be recommended to improve the strength of the DNA evidence, however this will incur an additional cost and the result could still be inconclusive.
Grandparent analysis is not as conclusive as paternity or maternity analysis and should be used when it is not possible to perform other types of testing.
Which Grandparentage DNA Test is right for me?
You have two main options when choosing an Grandparentage DNA Test:
- Testing for peace of mind, which produces results that can resolve family relationship questions but cannot be used for legal purposes
- Legal testing, which produces legally defensible results that are useful for such matters as family law disputes and immigration
Peace of Mind DNA Testing
If you opt for a peace of mind test, we will send you a free sample collection kit. You and the other tested parties will collect your own samples following the simple instructions provided in the kit. Please note that peace of mind test results are not legally defensible.
Legal DNA Testing
If you opt for a legal test, your DNA samples will be collected by a neutral third party such as a doctor, a nurse or one of our representatives. This third-party collection is an important element of the chain of custody process, which will make your test results legally defensible.
Purchase an Grandparentage DNA Test
Grandparentage DNA Test for legal purposes
To order a legal Grandparentage test, please call us at xxxxxxx. Order Here
Grandparentage DNA Test for peace of mind
Purchase a piece of mind Grandparentage test using our online order form or by calling xxxxxxx . Order Here