The answer is in your genes
A test of brotherhood determines whether two children share one or both parents.
The brotherhood test is a DNA test carried out to determine if two children share one or both parents (eg, if they are half-brothers or siblings of father and mother). It is an indirect way of determining family relationships when a presumed father is not available for a paternity test.
The brotherhood test can be done in several ways:
- Brother 1 and Brother 2 who do not share the same mother and want to find out if they share the same biological father – in this situation, a half brotherhood test is carried out.
- Brother 1 and Brother 2 share the same biological mother but are not sure if they share the same biological father – in this situation, a full brotherhood test is carried out.
In the test, the siblings’ DNA profiles are compared to see how much of their DNA may have come from a common father. The participation of the mother is recommended to help exclude the mother’s contribution to the child’s DNA.
Potential uses for the sibling test
- When the father is not available for the paternity test
- Immigration visa
- Personal knowledge