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What is a DNA paternity test

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For a paternity test we examine a persons's DNA, taken with a mouth swab or found in a blood sample. DNA samples of two or more persons can then be compared.

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What is paternity testing?

With a paternity test we can determine if a man is the biological father of a child. This is achieved by the collection and analysation of DNA samples from both participants. Every person has a unique set of DNA which contains half their mother's and half their father's DNA. For a paternity test this fact is used to look for similarities between the participants' DNA.

How does a paternity test work

When we conduct a paternity test we examine the DNA of all participants. While compiling the data for your personal DNA test result we cannot examine that part of your DNA which tells you about your desease risk. We solely compare variable DNA segments to find genetic matches and to deduce the probability of a relationship betwenn the participants.

Genetic Fingerprinting

Through the process of DNA testing or genetic fingerprinting of DNA samples we can distinguish between individuals. A DNA paternity test is a complex scientific process that examines highly variable segments (Marker) on the DNA by means of a PCR (polymearse chain reaction). This then shows a so-called genetic profile which we can use to conduct the paternity test.

 

Steps to conduct a paternity test

  1. Take a DNA sample
    the standard DNA sample is a buccal mouthg swab. Cells are easily and non-invasive taken with a cotton swab.

    Some tests will have to conducted after on of the participants is deceased. In such cases non-standard samples can be takes to perform a DNA test. Sometimes Üblicherweise kann man auf biopsy material can be provided or even a blood sampling can still be done. But also ear plugs, dentures or stubbles from a shaver can contain enough DNA to perform a paternity test.

  2. Amplify DNA
    Very often samples do not contain quite enough DNA to perform a test. In a first step we then we need to amplify the amount of DNA through a chemical process called PCR.

  3. DNA Analysis
    Now the gene data are analysed. With our test "Standard" we offer a mimimum of 24 marker. For difficult analyses we can do even 40 and more to deduce a reliable result from your data. 

  4. Statistical evaluation
    With a special-purpose calculation application our scientists are now able to calculate the likelihood of a relationship betwenn the test participants. An exclusion of paternity can be determined with 100%. A confirmation of paternity will always be a calculation deduced from the available data. Here we achieve a probability of up to 99,99999%  With this result a paternity is officially "practical proven". 

 

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