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Paternity disputes involving related males

Families involved in paternity disputes in Massachusetts might encounter the situation of having two related males as possible fathers to a child. These males can be brothers or father and son, and they might seek the results of DNA testing to identify the real father.

Even though brothers and fathers and sons share many of the same DNA markers, a DNA test is usually able to distinguish which one has fathered a certain child. The danger with these similar markers is that both men could test positive in a paternity test, if the lab does not have all the information needed to make a correct determination. However, if the lab is informed ahead of time about possible fathers being related, the correct precautions for the situation can be taken and the testing can provide accurate results.

There are two ways that can be used to determine which related male is the father of a child. The first way includes testing both possible fathers, the mother and the child at the same time. Results can then be compared to distinguish accurately who the father is. A second way to determine paternity in this type of situation is to test one of the fathers and provide an extended analysis of the results. This second option is a good option when only one of the prospective fathers is available for testing. Both types of testing involve additional fees since they both go beyond basic DNA testing.

In Massachusetts residents who need to establish paternity in certain court cases might be able to use the results of these types of DNA tests as evidence in their cases. This can be important in matters involving financial support of children as well as visitation rights.

Source: DNA Center, "There are two possible fathers, and they are related. Is this a problem?", November 04, 2014

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