The Y-Chromosome DNA test is a genetic comparison between two male participants to determine a paternal relationship.
​
The Y chromosome is one of the two sex-determining chromosomes. Its unique characteristic is that only men possess it, as it is passed exclusively from father to son, generation after generation.
​
The Y-Chromosome DNA test analyzes the markers of this DNA to accurately define your paternal lineage. By definition, it can determine if two or more men belong to the same family.
​
The test can be performed using buccal swabs or discreet samples.
You can order a test online to determine your relationship and receive the collection kit at home.
​
Often, participants may be geographically distant. In such cases, laboratories offer to send a genetic kit to each participant.
​
However, it is still not possible to purchase a DNA test in a pharmacy.
Additionally, only a laboratory equipped with genetic analysis tools and accredited under international standards can provide reliable results for a Y-chromosome test.
How to do a Y chromosome test?
​
Genetic analysis of the Y chromosome to determine the paternal lineage and the search for paternity can be useful in several situations depending on the participants:
​
-
Genetic analysis between brothers and half-brothers (different biological mother)
-
Genetic analysis between cousins (on the paternal side: the son of the uncle)
-
Genetic analysis between a nephew and an uncle (the uncle must have the same biological father as the father sought)
-
Genetic analysis between a grandson and his paternal grandfather
Under what conditions can a paternal line be defined?
​
Consent is the agreement you give to the laboratory to use your DNA for the purpose of carrying out a genetic analysis.
It is mandatory if you want to do a Y chromosome test. Consent can only be given explicitly by an adult and fully lucid person. This agreement must be in writing after having received information of the outcomes of the test, by a contract or a consent form.
It is against the law to do a DNA test without the person's consent.
For minors, consent must be provided by one of the legal parents.
What is consent for a DNA test?
We don't send DNA kits!
​
It's up to you to make your DNA kit with saliva samples.
You can place the order from any country.
​
Place your order to receive by email:
-
your customer code;
-
sample collection instructions;
-
the online consent form;
-
the shipping form to print, fill out and send;
-
the laboratory's address.
Product details
The DNA test and instructions include the use of saliva samples for both participants.
​
-
Addition of an extra participant: 99.00€
-
Addition of a non-standard sample: 69.00€
-
Organization of the sample shipping by the laboratory: 50.00€ (FEDEX)
All options must be requested by email: contact@infotestadn.com
Options
-
Results within 3 to 5 working days after receipt of saliva samples.
-
Results within 10 working days for other types of samples
-
The results are sent by email and then automatically destroyed within 60 days.
Results
Y-Chromosome Test
Prefer to receive a DNA kit?
We also work with the associated laboratory EasyDNA.
Order your test
Get instructions
Collect samples
Send to the lab
Discover your results
Your samples are analyzed by our partner laboratory:
Endeavor DNA Laboratories
​
Paternal Lineage Test Participants
In a paternal lineage, each man inherits a Y chromosome from his father that is perfectly identical and remains relatively unchanged over generations.
​
In this context, all men within the same lineage share this gene in common. However, this hereditary line is broken when a daughter is born, as women, having only X chromosomes, cannot pass on the Y chromosome.
The paternal lineage test determines whether the Y chromosomes are similar or not, concluding whether the tested males may be related through a common male ancestor.
The analysis of the Y chromosome cannot distinguish a specific relationship between men belonging to the same paternal lineage.
​
For instance, the test cannot determine paternity between a presumed father and an uncle if both share the same Y chromosome.
​
However, it can be useful to exclude men from a claimed biological relationship.
-
Two or more men can participate in the test
-
The test can be conducted between different male individuals to determine a paternal lineage
If, in your paternity search, doubts involve presumed fathers from the same family, then the Y chromosome test is not suitable for your situation.
In this case, please consult our guide on paternity testing to find an appropriate DNA test.
​
-
5-7 days using buccal swabs, for all participants
-
10+ days if a participant uses discrete samples
This time is calculated from the moment your samples arrive at the laboratory. The delivery time is not taken into account.
What are the analysis times for a Y chromosome test ?
The results are presented in a table format:
-
Each column corresponds to a participant
-
Each row represents the genes compared
-
The gene composition is represented by one or two numbers on each profile
DNA analysis is a direct relationship test. The genetic laboratory compares the profiles of each individual to determine whether they are similar or not.
The result is either positive or negative, leaving no room for doubt.
It is not possible to obtain inconclusive results.
​
To verify the relationship between participants:
The first participant must have a genetic profile identical to the second participant.
If the match is perfect, the relationship is confirmed; otherwise, it is rejected.
How to read the results of the Y chromosome test?
The reliability and authenticity of a DNA test depend on several factors:
​
-
The quality of the samples
-
The accreditation of the laboratory
-
The choice of the test based on the family situation
The success of DNA test results depends on sample collection and how the samples are stored. It is crucial to follow the laboratory's instructions to ensure the quality of the results.
​
Certified laboratories adhere to strict standards regarding analysis methods, resource and equipment management, objectivity, and data confidentiality. For a Y-chromosome test, the laboratory must be accredited under ISO 17025 standards.
​
The Y-chromosome test provides 100% reliable results for negative outcomes and 99.9% reliability for positive outcomes.
How reliable are Y chromosome results?
​
The choice of laboratory is a very important step when you want to do a Y-chromosome test. You should know that each of the laboratories has specific services and depending on your situation it is obvious to make the choice that suits you.
​
The choice of a laboratory can be made according to:
​
-
Your family situation and available participants
-
The confidence that the laboratory inspires through customer feedback
-
The transparency of the company concerning its activities and your expectations
How to choose a reliable Laboratory?
Maternal line research
The mitochondrial DNA test allows anyone to compare this specific DNA from the biological mother to determine a common maternal line.
Paternity search between sisters
The analysis of the X chromosome makes it possible to define whether the two sisters share the same paternal X chromosome. For this, it is mandatory that the sisters share the same biological mother.
​
Y chromosome analysis can also be used for genealogical research on the origins of your paternal ancestors.
​
Genealogy DNA testing examines specific locations in your DNA to estimate ancestral genetic relationships. It allows your genetic profile to be compared and integrated with a database that lists and uses different reference ethnic groups , composed of people tested and whose previous origins are known.
​
There are three main types of genealogical DNA testing , each examining a different part of the genome and useful for different types of genealogical research:
​
In order to have information on your origins :
-
Know your ethnic percentage
-
Find information about the origin of your family
-
Understand population migrations
You wish to complete the genealogical archives of your family :
-
Improve your classic genealogy research
-
Discover and identify genetic matches
-
Find family members
-
Add your genetic profile to a database
The genealogy DNA test will not give you with certainty and precision a biological relationship between family members . It can give you a more or less distant relationship percentage that you must confirm with a relationship test in order to guarantee the biological link.
The genealogy of the Y chromosome
​
The Y chromosome genealogy test can be used to determine paternal ancestry and trace the ancestors of the family on your father's side.
In addition to providing you with important information in your genealogical research, this DNA test gives you access to:
-
Your direct paternal line and your geographical origins
-
Relationships with people who have the same DNA
-
The ancient migration paths of your male ancestors
-
Your paternal affiliation to the haplogroup
The Y chromosome allows the paternal lineage of a man to be investigated very accurately. This approach can help you find unknown or lost relatives.
​
It is possible to order a genealogy test with the Y chromosome:
​
-
This test is done individually
-
With a saliva sample only
-
The results are available in English
-
Analysis is ready in 4 - 5 weeks
The paternal lineage test
