The Y chromosome is found solely in males and is inherited from the father. Testing this chromosome by means of a Y-chromosome test, sometimes called a Y-STR test, can thus be useful in establishing whether two males have the same paternal line.

In cases where an alleged father is not available for testing through a paternity test, we would likely recommend doing this type of test between male siblings in order to establish if they share the same paternal lineage.

Another example is in the case where two first cousins may actually wish to determine in a scientifically reliable way whether their fathers were in fact brothers, or to check if their grandfather is common to both. In such cases this may be determined by doing a Y-STR test.

It is important to understand that this type of test may not always be able to determine the exact relationship between males, for example whether an individual is your father or uncle or grandfather. The result therefore needs to be interpreted within the context of the case.

The Y-chromosome has a very low rate of mutation and therefore, it provides a reliable means of testing for biological relationships between males. The test will show the Y-STR profile for each male tested.

Y-chromosome testing is priced at £269 for two males to be tested. Proceed to Order Here.

Return to our Relationship DNA Testing to keep reading more on the tests between relatives that we offer.