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Additional information
The grandparentage test we offer determines the probability that a grandparent is the biological grandfather or grandmother of a child.
A child inherits exactly 50% of its genes from its biological mother and 50% from its biological father. Therefore, this child shares exactly 25% of its genes with each biological grandparent. If both biological parents of the alleged parent are tested and they do not have the paternal or maternal genes between them, then they are excluded as biological grandparents. If both biological parents of the presumed parent have the paternal or maternal genes between them, they are not excluded as biological grandparents.
It may not be possible to obtain conclusive results in a grandparent DNA test if both alleged grandparents are not tested. We recommend testing both alleged grandparents as well as one parent if possible to achieve the most accurate results.
It is also important to understand that, in reporting the results of a DNA grandparent test, the laboratory assumes that the tested alleged grandparents are, in fact, the biological parents of the unavailable, alleged parent. If there is any question regarding the paternity of the unavailable alleged parent, then the alleged biological grandfather should not be tested.
The test protocol is very rigorous and precise, and includes the reading of 22 DNA sequences (22 loci), giving the test a 99.99% certainty if both grand-parents' samples are provided.
Process
- After ordering your test, you'll receive a collection kit that includes 3 swabs (one for each of the two grand-parents and one for the grandchild). You'll find the collection instructions in the envelope. This is a painless process.
- Register your kit and personal information in your customer portal on the Adnà website.
- Return your sample (in its original envelope) for sequencing and analysis at the laboratory.
- You will receive an e-mail notification that your test report has arrived in your Adnà customer portal.
- Results are normally delivered within five days of reception at the laboratory.
Same-Day Delivery
Shipped the same day you order
Maximum Reliability
Standard 20 loci test at no additional cost
ISO 9001 Certified
ISO9001 Accredited Partner Laboratory
ISO 17025 Certification
ISO17025 Accredited Partner Laboratory
Questions?
How does a grand-parentage DNA test work?
In a grand-parentage test, the laboratory compares the child's DNA with that of the grandparents by analyzing specific genetic markers present in the child's and grandparents' DNA. The goal is to verify if the child shares certain genes with the grandparents.
Grand-parentage DNA tests are very precise, especially if the child's parents are included in the process. A test without the inclusion of the parents may be less certain, as there is more uncertainty in the sharing of genetic markers.
How long will it take to receive my results?
The time required to process and analyze your sample depends on the type of report you have ordered. Once it arrives at the laboratory, processing times are as follows:
- Paternity and other filiation test kits are processed and sent out to you within 24 hours. Once you have sent back your sample and it has reached the laboratory, results are normally ready within 2 days following reception at the laboratory.
- Biomarker tests are processed in 7 to 14 working days.
- Ancestry, sports performance, nutrition, skincare, talent & personality, microbiome, genetic predisposition and pharmacogenetics test kits are processed and shipped to you within 24 hours and results are normally received within 30 to 60 days of placing your order.
How will I receive my results?
You will receive an email notification when your report has arrived on the Adnà portal. Simply log in to your account.
What is the intended use of the information you collect?
We collect your personal information for the following purposes:
- To create, use and manage your user accounts on our platform;
- To provide you with the products and services you request;
- To better understand the use of the platform;
- To analyze and improve your user experience;
- To communicate with you;
- To develop, improve, market or provide the platform and our products and services;
- To back up our databases and keep your records;
- To establish, exercise or defend legal claims, whether in judicial, administrative or extrajudicial proceedings for the protection and vindication of our legal rights, your legal rights and the legal rights of others;
- To comply with applicable laws and regulations.
Who is my personal information shared with?
Your information is shared with the following partners:
- Payment service providers;
- IT service providers;
- Genetic analysis laboratory partners;
- Digital analysis and statistics service providers;
- Partners, government agencies and regulatory authorities, judicial bodies, associates, agents, attorneys or other representatives for compliance with legal obligations to which we are subject;
- To any other person as permitted and/or required by law.
How do you ensure the privacy and security of my genetic data?
- We use cutting-edge encryption to protect your data;
- We strictly respect privacy laws;
- We ensure that our partners comply with these laws;
- We ensure that your genetic information is anonymized when transmitted to our partner laboratories.
Will my genetic data be shared or sold to third parties?
- Your data will never be shared with or sold to third parties.
What types of genetic tests do you offer?
Our tests fall into several categories:
- Filiation tests, which identify whether there is a familial relationship between two or more individuals.
- Well-being tests, which provide information on how your genes can influence your lifestyle, preferences, health, and well-being.
- Health tests, which help identify genetic predispositions to certain diseases or how the body metabolizes specific medications.
- Ancestry tests, which offer insights into an individual’s family origins and genetic lineage across different historical periods.
- Microbiome tests, which identify and quantify the various bacteria and microorganisms present in a person’s microbiome.
- Biomarker tests, which measure specific substances in the blood to assess an individual’s health, detect diseases, or monitor their progression.
What are the limits of your tests?
- Our tests are for informational and educational purposes. They are not intended to be used as a diagnostic tool. Your traits are not only influenced by genetics, but also by many other factors such as social and geographical environment, education, lifestyle, etc. We encourage you to interpret the results with caution, and to consult healthcare professionals for further evaluation if necessary.
The information extracted from the tests and presented in our reports should be considered as indications of predisposition and not as definitive diagnoses. Their relevance may vary according to numerous environmental factors.
What is the scientific basis for your tests?
- A parentage test uses DNA to establish family relationships. It analyzes genetic markers to identify biological relationships between parents and children, grandparents, uncles, aunts, twins and siblings. DNA comparison reveals specific genetic similarities, indicating a family relationship. These tests exploit genetic patterns of inheritance shared by members of the same family. In this way, they can map out extended family connections, offering a precise overview of biological links. Our parentage tests offer close to 99.9% accuracy.
- Our lifestyle and health tests are based on a combination of cutting-edge technologies and internationally recognized scientific studies. DNA sequencing is performed using Illumina technology. This technology can analyze over 700,000 genetic markers. Added to this is the integration of peer-reviewed studies accepted by the international scientific community, which enable a connection to be made between a particular gene and a potential predisposition. This ensures that reports are based on recent, relevant scientific data that reflect an established scientific consensus.
What information can I find in your genetic reports?
- Depending on the type of test you choose, you can expect to receive detailed information about your parentage, your ancestry, personalized health advice, or insight into specific genetic traits.
Can your tests identify predispositions to certain diseases?
- Yes, our Genetic Predisposition Test answers this question. However, this test is not intended for diagnostic purposes.