Understand Your Results

Understand Your DNA Test Results

At DNA Hub Africa, we understand that for many clients, this may be your first experience with DNA testing. To help you fully understand your test results, we have created this detailed guide on what your DNA test results reveal.

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Testing Alleged Father and Child

To determine paternity, we require samples from both the alleged father and the child. Using a powerful technology called Polymerase Chain Reaction (PCR), we extract and analyze genetic material from both individuals.

Each parent contributes half of their genetic material to their child, with 23 chromosome pairs. A child’s DNA consists of 46 chromosomes—23 inherited from the mother and 23 from the father. In our DNA test, we compare specific genetic markers from the alleged father and the child to determine if they share common genetic traits, which helps confirm whether the alleged father is the biological father.

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About Your Test Results

Our laboratory follows ISO 17025 standards to ensure the highest quality testing. We offer a variety of DNA paternity tests to suit your needs, ranging from home paternity tests for peace of mind to legal and immigration tests.

In each test, we evaluate 40 genetic markers to assess the relationship between the tested parties. While it is possible to conduct paternity tests without the mother’s sample (known as 'motherless' testing), we highly recommend including the mother’s sample, as it can improve the accuracy of the results. However, even without the mother’s sample, the test will still provide reliable results.

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Understanding the Results

• Inclusion of Paternity: If the alleged father is the biological father, the test will show a probability of paternity of 99.99%.

• Exclusion of Paternity: If the alleged father is not the biological father, the probability of paternity will be 0%.

Once your samples are received and the 40 genetic markers are analyzed, these will be displayed in a detailed table in your paternity report. The table will list the markers for both the alleged father and the child, and, if applicable, the mother’s results as well.

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What is the CPI?

The Combined Paternity Index (CPI) is a statistical calculation that determines the likelihood of paternity. For example, a 99.99% probability of paternity means the tested man is 99.99% more likely to be the biological father than any other random man from the same ethnic group.

The 40 genetic markers we test for provide a thorough analysis, helping ensure that the results are both accurate and reliable.

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Final Thoughts

Understanding your DNA test results is key to making informed decisions. Our team is here to assist you through every step of the process, providing support and answering any questions you may have.