The traditional DNA-based sibling relationship test makes it possible to determine whether two individuals are full siblings, half-siblings, or not genetically related. The test provides more accurate results if a DNA sample from a common parent is available, but it can also be performed without it.
Sample collection is painless and carried out using buccal epithelial cells, which can be collected at home by the client. Results are available within 10–12 days and provide a clear answer regarding the existence of a sibling relationship.
Sibling relationship tests offered by DNS Központ provide a reliable and accurate way to clarify genetic relationships between siblings. These tests are particularly useful for resolving family uncertainties, handling inheritance matters, or simply gaining insight into genetic background for personal reasons. We offer two main types of testing in this area: twin testing and sibling genetic relationship testing.
Twin test – Identical or fraternal?
The twin test is designed to determine whether twins are identical (monozygotic) or fraternal (dizygotic). Identical twins share nearly 100% of their DNA, while fraternal twins share on average only about 50%, just like any other siblings. This test is performed easily and painlessly using a buccal epithelial cell sample (“saliva sample”), which is analyzed using the most advanced laboratory technologies.
The DNS Központ twin test provides fast and clear results:
- Distinguishes between identical and fraternal twins with 100% accuracy.
- Results are delivered in a clear, official report format.
Sibling genetic relationship test
The sibling genetic relationship test determines whether two or more individuals are full siblings, half-siblings, or not genetically related. This test is especially useful when a common parent (mother or father) is unavailable or when lineage information is uncertain. The procedure is simple and painless, based on buccal epithelial cell samples, which are analyzed in our laboratory with the highest level of precision.
The DNS Központ sibling relationship test:
- Provides a clear answer as to whether a genetic sibling relationship exists.
- Delivers statistically supported, reliable results with at least 99% accuracy.
Data protection and discretion
DNS Központ handles personal data with maximum discretion and in accordance with the strictest data protection standards. Confidentiality and data security are ensured throughout every test.
Why choose DNS Központ sibling testing?
- Simple, fast, and painless sample collection process
- Internationally accredited laboratory with more than 30 years of professional experience
- Personalized and easy-to-understand expert consultation
Turn to us with confidence to receive clear answers to your genetic questions and eliminate uncertainty.