A Y Chromosome DNA Test is a relationship DNA test used to determine whether two males share the same paternal bloodline.
The Y chromosome is passed from father to son with very little change from one generation to the next. Because of this inheritance pattern, males who descend from the same paternal line often share similar Y-chromosome markers.
A Y-STR (Y Chromosome Short Tandem Repeat) DNA test may be helpful when the alleged father is unavailable for testing. This testing option is commonly considered when no direct paternal samples are available and other family reconstruction DNA testing options cannot be performed.
For example, a male child may be tested against a male cousin whose father is the alleged father’s biological brother. Since both brothers inherited their Y chromosome from the same paternal line, the laboratory can compare the Y-chromosome markers of the participating males to determine whether they share a common paternal lineage.
It should be noted that a Y Chromosome DNA Test does not identify a specific biological relationship. For example, the test cannot determine whether two men are brothers, uncle and nephew, or cousins. The test can only determine whether the participants share the same paternal line.
The results of a Y Chromosome DNA Test are commonly used for informational purposes and can also be used for legal purposes.
How much does Y Chromosome Test cost?
Pricing starts at $399.99. Below are our testing options
What is a At-Home Y DNA Test Kit?
This is a peace of mind testing option that cannot be used for any legal purpose.
| Testing Options | Costs |
| At Home Y DNA Test KitTwo People (Males Only Test) | $399.99 CLICK HERE TO BUY |
| At Home Y DNA Test KitTwo People (Males Only Test)In two different locations | $425.00 CLICK HERE TO BUY |
Please note: At-Home DNA Test results cannot be used for any legal purposes. In addition At-Home DNA test kits are prohibited to be sold to New York State residents due to the New York State Department of Health (NYSDOH) guidelines
DNA Test Kit Contents
- 4-6 Sterilized cheek swabs each packet has 2 swabs per person
- Contact Identification Form
- Sample collection instructions
- Prepaid overnight FedEx return shipping envelope
How the process works:
Getting started with a peace of mind paternity test is simple. Below is a brief outline of what you can expect from our At-Home Paternity Testing process.
- Order below or contact our office at 888-204-0583 to purchase your DNA kit by phone.
- After you purchase your test kit, please allow up to 24 hours or one business day to ship your kit to your home.
- Once you receive your kit, follow the instructions on how to collect your DNA samples. Sign the chain-of-custody form. Place all of the contents you receive inside of the prepaid return envelope you received and ship your genetic samples back to the lab for analysis.
- When the lab receives all of your genetic samples. Please allow 2-3 business days for your results to be completed. Upon the completion of your results, a copy will be sent to your physical home address and a copy will be sent by email.
What is a Legal Y Chromosome DNA Test?
A Legal Y-STR DNA Test is a relationship DNA test used to determine whether two males share the same paternal bloodline. This testing option is often considered when an alleged father is unavailable, deceased, or unwilling to participate in DNA testing.
Y-Chromosome DNA testing focuses on the Y chromosome, which is passed from father to son with very little change from one generation to the next. Since only males carry a Y chromosome, the laboratory can compare Y-chromosome markers to determine whether the participants share a common paternal lineage.
A Legal Y-STR DNA Test may be helpful in cases involving child support disputes, inheritance matters, and other legal situations where proof of a paternal-line relationship may be required.
It should be noted that a Y-STR DNA Test cannot identify a specific relationship between two males. Instead, it helps determine whether the participants share the same paternal line.
For legal purposes, DNA sample collection must follow a strict chain-of-custody procedure. Our partner AABB-accredited laboratory will perform a comparative analysis, and an unbiased third-party collector must collect the samples. This process helps ensure the integrity of the testing process.
| Testing Options | Costs | Sample Collection Costs |
| Legal Y chromosome DNA TestTwo People (Males Only Test) | Starts at $599.99 | Sample Collection Fees Range From $25 to $100.00 per person |
| Legal Y chromosome DNA TestTwo People (Males Only Test)In two different locations | Starts at $599.99 | Sample Collection Fees Range From $25 to $100.00 per person |
Where can I go to get a Y DNA Chromosome test?
Contact our office today at 888-204-0583 to schedule your Y Chromosome DNA testing appointment. IDTO DNA has over 3,000 DNA sample collection sites nationwide located near most major cities, making the appointment process fast, convenient, and accessible for families throughout the United States. Below are areas we service.
Alabama
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
What is the method of DNA sample collection?
The standard DNA sample collection method is performed using a cheek swab collection. Buccal swab DNA collection is painless, non-invasive, and highly accurate for Y DNA testing.
Blood sample collections are available in certain situations, though this collection method is more invasive and typically unnecessary for most relationship DNA tests.
Can I use an alternative DNA sample for DNA Y Chromosome test?
Yes. Alternative forensic DNA samples can be used when an alleged father is unavailable to participate in the DNA testing process.
| Common Forensic DNA Samples | Legal Use |
| Blood Stain | Cannot be used for legal purposes |
| Hair Follicles | Can be used for legal purposes. If a chain of custody can be established. Commonly used for deceased relative cases. |
| Toothbrush | Cannot be used for legal purposes |
| Earwax | Cannot be used for legal purposes |
| Fingernails | Can be used for legal purposes. If a chain of custody can be established. Commonly used for deceased relative cases. |
| Used Kleenex | Cannot be used for legal purposes |
Frequently Asked Questions
How long will it take to receive my Y Chromosome DNA results?
The turnaround time for results is 2 to 3 business days from the date the laboratory receives all DNA samples.
Are Y STR DNA test results accurate?
Yes. Y DNA testing is highly accurate when proper chain-of-custody procedures and accredited laboratory testing standards are followed. All DNA samples undergo a strict dual-analysis process to help ensure accurate and reliable results for claimed biological relationships.
All legal Y DNA tests are performed through our partner AABB-accredited laboratory. This accreditation helps ensure the DNA test results are recognized by family courts, immigration agencies, and government institutions nationwide.
Our partner laboratory analyzes between 18 and 22 genetic markers during the Y chromosome DNA testing process to determine the probability of a biological relationship. Inclusion results commonly produce a probability of relatedness of 99% or higher.
In exclusion cases, additional extended DNA analysis may be performed using up to 27 genetic markers to help determine whether the tested individuals are biologically unrelated.
Does a Y DNA Test require the father to participate?
No. A Y-Chromosome DNA Test is a paternal lineage DNA test designed for situations where the alleged father is unavailable to participate.
The laboratory compares the Y chromosome of two males to determine whether they share the same paternal family line. This testing option is often used when the alleged father is deceased, missing, or unwilling to undergo DNA testing.
What Are the Limitations of Y-Chromosome DNA Testing?
A Y-Chromosome DNA Test cannot distinguish between males who share the same paternal family line. For example, a father, son, brother, uncle, nephew, or paternal cousin may have very similar Y-chromosome profiles. The test can help determine whether the tested males share a common paternal lineage, but it cannot identify which specific male is the biological father.
Can a Y STR DNA Test result be used for immigration purposes?
No. Y-STR DNA testing is generally not used for immigration purposes because immigration DNA testing requests are based on the relationship between the petitioner and beneficiary.
When an immigration agency requests DNA testing, the goal is to establish the specific biological relationship being claimed. Depending on the circumstances, paternity, maternity, sibling, grandparent, or avuncular DNA testing is typically a more appropriate testing option.
A Y-STR DNA Test determines whether two males share the same paternal lineage. However, it cannot identify a specific biological relationship or distinguish between multiple males from the same paternal family line. For this reason, Y-Chromosome DNA testing is rarely, if ever, requested as evidence in an immigration case.
A theoretical exception could exist if an immigration agency specifically requested evidence of a paternal family relationship between two males and no other testing option was available. However, such circumstances would be extremely uncommon.
Are my DNA results kept private?
Yes. IDTO DNA and its partner laboratory do not share any personal or genetic information with third-party companies.
All information provided to our partner laboratory is kept secure and will only be released to third parties with the explicit consent of the participants involved or by court order. Specimen samples on file are kept for an average of 3 months, then destroyed.
What Is the Difference Between a Y-DNA Lineage Test and a Y-Chromosome Relationship DNA Test?
A Y-DNA lineage test is commonly used for ancestry and genealogy research to explore a person’s paternal origins over many generations.
A Y-Chromosome relationship DNA test is used to determine whether two living males share the same paternal family line when a direct paternity test cannot be performed.
Relationship Y-STR testing focuses on answering a specific biological relationship question, while lineage testing focuses on ancestral origins and family history.
Why Choose Us IDTO DNA
IDTO DNA is a BBB accredited company that continues to serve thousands of families nationwide with their Y Chromosome testing needs. Since 2004, we have been a trusted source for both legal and medical professionals seeking reliable DNA testing for their clients.
Our knowledgeable staff will guide you in selecting the right type of genetic test for your specific situation. This careful attention helps prevent ordering the wrong relationship test and avoids the need to pay for additional testing.
