Paternity Test

The DNA paternity test is a genetic comparison between a presumed father and one or more children. This analysis allows to establish with precision whether a man is the biological father of a child.

Each individual possesses a genetic heritage composed of 50% from their father and 50% from their mother. The test compares the child's genetic profile with that of the presumed father to verify if there is indeed a 50% match.

The analysis can be performed from the child's birth, at any age, with saliva swabs or discrete samples.

The results are presented in the form of a comparative table:

• Each column corresponds to a participant (child, presumed father, mother if present)

• Each line represents a gene (genetic marker) to compare

• The composition of the gene is represented by one or two numbers (pair of chromosomes)

The child must have at least one number in common per line with the presumed father. If the correspondence is perfect on all the analyzed genetic markers, the paternity relationship is confirmed. If not, it is excluded.

The results report clearly indicates the conclusion: "is the biological father" or "is not the biological father".

If the father is not available for the test, several alternatives exist depending on your family situation. Consult our guide on paternity search to discover available options: tests with the paternal family (grandparents, brothers/sisters of the father), indirect tests, etc.

The reliability and authenticity of a paternity test depend on several key factors:

1. Sample quality

The quality of extracted DNA depends on compliance with sampling and sample storage instructions. It is essential to carefully follow the laboratory's instructions.

2. Laboratory accreditation

Accredited laboratories meet strict requirements concerning the analysis process, equipment management, impartiality and information confidentiality. For a paternity test, the laboratory must have ISO 17025 accreditation.

3. Number of genes analyzed

The reliability of the result depends on the number of genetic markers (STR loci) compared. Laboratories generally offer an analysis of 15 to 22 genes. Depending on your situation, you can request an extended comparison to further improve precision.

Choosing a laboratory is a crucial step when you want to do a relationship test. Each laboratory has specific services and it is important to choose the one that corresponds to your situation.

Selection criteria:

• Your family situation and the participants available for the test

• Customer reviews and the laboratory's reputation

• The transparency of the company regarding its activity, its accreditations and its processes

• ISO 17025 accreditation which guarantees compliance with international standards

• Confidentiality and the protection of your genetic data

According to the laws of your country, you have the option to order a legally valid DNA test. This legal test, accredited by the laboratory and accepted by the courts, can be used in any judicial or administrative proceedings.

Legal framework:

In France, paternity testing within a legal framework can only be ordered by a judge, in cases concerning family law. Ordering a legal DNA test online (according to your country) allows you to anticipate the results that may be obtained during judicial proceedings.

Private framework:

You can also take a home paternity DNA test in a private setting for your personal information. The order is placed directly online to receive the home sampling instructions.

Yes, your genetic data is protected. With the European data protection legislation (GDPR), you retain full control over the use of your genetic data.

You have the right to:

• Know how your data is being used

• Withdraw your consent after use

• Request the deletion of your data

At InfoTestADN, your results are automatically destroyed within 60 days to ensure your privacy.

Choosing a DNA test can be difficult when you are not aware of the differences between the existing analyses. The choice of test primarily depends on your personal situation, the biological connections you wish to explore, and the available participants for the analysis. Depending on whether it is a paternity, maternity, or another type of kinship search, the possible tests are not the same.

On infotestadn.com, we provide you with an informative guide to help you understand which DNA tests can be carried out based on your situation. This approach provides a clear and objective initial direction before contacting a laboratory suited to your needs.