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Paternity Testing Without Father and Mother? The German Company bj-diagnostik Investigates that Two babies Separately Left at Charity Institution are Siblings
Date:12/23/2009

nostik can check whether two or more siblings had the same father. More information and with it a higher probability of descent are obtained when the mother or relatives of the father are involved in the sibling test.

Should the information produced through a DNA test not be sufficient to formulate a clear result, DNA fingerprints from further people from the known line of descent must be obtained. Through corresponding calculations (simulation), Dr. Michael Jung can investigate with which probability a relationship can be determined before the beginning of the DNA test.

The more information available (amount of sample people and DNA markers), the more meaningful the research result. Depending on the case, laboratories can test inheritance characteristics of up to 24 DNA markers.

Should the parents not be available for a test, siblings of the parents or the grandparents can be tested in order to answer questions of descent.

But how do you proceed in a case like the two foundlings, whose different foster parents suspected they might be siblings? There were neither samples of the unknown parents nor of any relatives - the only samples available were samples of the foundlings themselves.

In these cases bj-diagnostik uses information hidden in the paternal and maternal line of descent to complement the mathemical comparison of the children's genetic fingerprints: If the children in question are male, bj-diagnostik can research paternal lines of origin with the help of the Y-chromosome marker and achieve very precise results regarding the degree of relationship. For both female and male siblings it is possible to use mtDNA (mitochrondrial DNA), which is inherited through the maternal ancestry line, to determine whether they have the same mother.

The German company

Source: PRWeb
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Paternity Testing Without Father and Mother? The German Company bj-diagnostik Investigates that Two babies Separately Left at Charity Institution are Siblings
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