With a Y chromosome comparison test you can test whether there is a biological relationship between men. For example, between paternal grandfather and a grandson, or between a paternal uncle or cousin and a child. The Y chromosome is passed on from father to son and is virtually identical for subsequent generations. That means sons have the same Y chromosome as their father. But also that other male relatives in the male line have the same Y chromosome. Cousins, whose fathers are brother to each other, for example. This means that with a Y chromosome test you have options to determine paternity, without the father having to participate in a paternity test.

Because the Y chromosome is only passed on in the paternal line, women or girls cannot participate in a Y chromosome test.

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A full sibling test is appropriate if you want to know if you are each other’s full siblings. In other words: if you want to know whether you have the same biological parents. You can of course also perform this test with two (or more) brothers or two (or more) sisters or a combination of both.

The test can be performed without parents. But it can also be performed with both parents or with only one parent. We always advise you to have (alleged) parents tested, in order to increase the accuracy even further.

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A half-sibling test is appropriate if you want to know if you are each other’s half-brother and half-sister. This test is usually performed when people already know that they do not have the same biological mother, but want to know whether they do have the same biological father. For example, in a blended family. This test can also be performed if putative half-brothers and half-sisters want to make sure they share a common biological parent. This test can also be performed with two (or more) half-brothers or two (or more) half-sisters, or a combination of both.

The test can be performed without parents. But if biological parents are known, we always recommend that these people be tested. This increases the accuracy even further.

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At Vaderschapstest.nu you can order various kinship tests. Likewise a half brother and sister test and a full brother and sister test. You can order this test if you would like to know whether you and your brother or sister have the same biological parents. If you do not have the same mother or if you are not sure whether you and your brother or sister have the same mother and want to know whether you have the same father, you can also choose to have a half-brother-sister test taken.

Half brother sister DNA test

A half-sibling test allows you to test if you suspect that you and another person have a common biological parent. Sometimes it is recommended that one or more mothers participate in the test.

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You perform an uncle or aunt test if you want to confirm whether you are actually related. There can be several reasons for this. For example in the case of an inheritance, adoption or immigration issues. But the test can also be performed to establish paternity if the father does not want to cooperate with a paternity test.

The test is almost always performed to determine whether a child has a biological connection to the alleged father’s sibling. It is not necessary for this test that the biological mother is tested. If it does, it will improve the accuracy of the test.

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Are you curious if a child is biologically related to his paternal grandparents? Then you can perform a grandparent test. This test checks whether the DNA of the alleged grandparents is reflected in the DNA of the child. For this reason, this test is also very suitable for establishing paternity when the alleged father is unable or unwilling to cooperate in a paternity test.

We recommend that the biological mother also participate in the test. At that moment, the researcher can exclude the DNA material from the mother and focus on the DNA material of grandfather, grandmother and (grand)child. This improves the accuracy of the result.

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With a prenatal paternity test you can already have a DNA test performed during pregnancy. This way you can check whether the alleged father is really the biological father of the unborn child. The prenatal paternity test from paternitytest.nu is performed with the mother’s blood. No DNA is taken from the baby and the test therefore poses no risk to the baby. This is different with chorionic villus sampling or amniocentesis. The mucous membrane is removed from the alleged father with a cotton swab.

The prenatal paternity test can be performed from the 9th week of pregnancy until just before delivery.

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With our paternity test we can determine very accurately whether you are the father of a child. With our test kit you can easily and painlessly take the DNA samples yourself with cotton swabs. The laboratory then compares your DNA with the child’s DNA in at least 20 places. Do the DNA profiles not match? Then we can determine with 100% certainty that you are not the father of the child. Do the DNA profiles match? Then we can determine with at least 99.999% certainty that you are the father.

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