Unsure whether you and your sibling share the same father? A recent ancestry test may have revealed a potential brother or sister. In this situation, a sibling DNA test provides an accurate and effective way to confirm biological relatedness.
IDTO offers both legal and non-legal sibling options. These tests use scientific analysis to compare specific genetic markers between siblings, producing a Combined Sibling Index (CSI) to determine the probability of siblingship or to indicate that a biological relationship does not exist.
What is a Sibling DNA Test?
A sibling DNA test, also known as a brother and sister DNA test, is a genetic analysis that determines the biological relationship between alleged siblings. The testing process compares the DNA of two or more individuals to identify whether they are full siblings, half siblings, or not related.
The importance of performing a DNA sibling test
The importance of performing a DNA sibling test is highlighted in situations where a father cannot participate in a paternity test. This testing serves as a useful tool for immigration cases, adding a biological father’s name to a birth certificate,inheritance, and acquiring social security benefits. Accurate results can help establish legal relationships and support various claims in these scenarios.
Types of Sibling Tests
Full Sibling:
A full sibling test determines whether two individuals share both parents, indicating a strong genetic connection.
Half Sibling
A half sibling test identifies if two individuals share one parent, resulting in some common genetic markers but not the same genetic makeup as full siblings.
Not Related
A not related test concludes that the individuals do not share a biological relationship, showing no significant match in their DNA and indicating they are not siblings.
Method of DNA sample collection
What method will be used to collect my DNA samples?
The commonly used method for DNA sample collection is a cheek swab. Blood specimen collection is another efficient method that provides the same accuracy as cheek swabs.
Alternative Samples
When the standard method of cheek swab cannot be used, alternative forensic samples can be used for genetic analysis. These include hair, toothbrushes, and ear wax. It should be noted that depending on the circumstances, results from alternative samples may not be used for legal purposes.
How accurate is a Sibling Test?
Sibling tests use statistical algorithms to determine the probability that siblings share the same father based on the number of genetic Standard Tandem Repeat (STR) markers they have in common. Most sibling DNA tests can establish the probability of shared paternity with over 99% accuracy.
What should I do if I have questions or need assistance with the testing process?
Contact our office at 877-680-5800 for any questions or to schedule an appointment.
How The Process Works:
We provide to types of sibling DNA tests, legal and non-legal. Below is an overview of each testing option.
Non-Legal Peace of Mind Sibling Test
Non-Legal Peace of Mind At Home Sibling Test
A Peace of Mind sibling test is a genetic test that can be performed in the comfort of your home or any private location. The results from this test cannot be used for legal purposes. Below is how to purchase an At-Home Sibling Test Kit:
- Call 877-680-5800 or purchase your IDTO Sibling DNA Test Kit online here.
- After completing your purchase, we will ship the DNA kit within 24 hours.
- Once you collect your DNA samples and complete the consent form, ship the samples back to the laboratory.
- After the lab receives all specimen samples, DNA testing will begin. DNA results will be available within 2 to 3 business days. When your results are complete, a physical copy will be mailed, and an additional copy will be emailed to you.
Please note, this relationship testing option is for informational uses only and cannot be used for any legal purpose. Learn more about our legal sibling DNA testing option below.
Peace of mind Testing cost
At-Home sibling DNA test cost starts at $299.99. The cost of your test includes both the DNA testing and shipping fees. The kit includes a consent form, sample collection supplies, specimen collection instructions and a FedEx Prepaid Return Envelope.
Click the button below to purchase online.
Legal Sibling DNA Test
A legal sibling DNA test is similar to a non-legal test. This testing option allows your DNA results to be legally admissible in court. This testing requires an unbiased third-party collector and the establishment of a chain of custody.
All legal DNA testing services provided by IDTO are performed under the strict supervision of our partner AABB-accredited DNA testing laboratory. Testing by an accredited laboratory ensures your results will be recognized by family courts nationwide, birth certificate offices, and immigration agencies worldwide.
Legal Testing Cost
Legal sibling DNA testing costs start at $499.99. The number of participants may affect the final cost of your testing. You can schedule appointments even when parties live in different states.
How to Schedule An Appointment?
Scheduling an appointment is simple. Just contact our office at 877-680-5800 to book an appointment at one of over 2,000 facilities in our nationwide network. Collection sites are conveniently located near every major city in each state, making it easy to set up your appointment.
When will I receive my results?
The turnaround time is 2 to 3 business days from the date the lab receives your sample. Once your results are ready, we will contact you by phone with an update. You will also receive a copy of the results via email, and another copy will be mailed to your home.
Frequently Asked Questions
Yes, a sibling DNA test can be performed without samples from the father or biological mother. Including a common parent increases the accuracy of the analysis, but tests conducted without one still provide accurate results.
Appointments can be scheduled in different cities or states where we have facilities in our network. Please contact our office at 877-680-5800 to get started.
For an At-Home Sibling DNA test kit, we can ship two separate kits to different locations.
No age restrictions exist for performing a sibling DNA test. Children under the age of 18 will require consent from their custodial parent or legal guardian.
Sibling relationship tests are to designed to confirm biologically relationship not to find lost relatives. However, they can help individuals identify lost siblings if both parties are willing to participate in the testing.
No, siblingship testing can only be performed using DNA from the two alleged siblings. Tests involving relatives such as grandparents, aunts, or uncles are different types of tests.
It is essential that all parties involved in a sibling DNA test give their consent before submitting DNA samples for genetic analysis. Be sure to review your state laws and consider consulting legal counsel regarding the use of DNA samples without the other person’s permission.
Keep in mind that conducting a DNA test without permission may impact the admissibility of your results in court.