What is a Sibling DNA Test?
Sibling DNA Testing helps determine if individuals share common biological parents by analyzing their genetic material. This testing is especially useful when the potential biological father is unavailable for direct paternity testing. The types of testing available include:
Testing Types:
- Full Sibling: This test determines whether both individuals share the same biological parents.
- Half Sibling: This test determines whether two individuals share one biological parent.
Testing Options & Pricing
Home Testing Kit:
Pricing Starts at $299.99
At Home Sibling Testing option is for peace of mind purposes only. Results cannot be used for legal purposes. Below are the contents of DNA test kit:
- 4-6 sterilized buccal swabs (2 swabs per person)
- Sample collection instructions
- Contact identification form
- Prepaid overnight FedEx return shipping
Legal Testing
Legal Sibling tests can be used for any legal purpose. All DNA samples are performed by our partner AABB accredited DNA testing lab. Pricing for legal sibling testing starts at $499.99.
Below are common applications to perform legal DNA test.
- Immigration cases
- Child Custody
- Birth certificate amendments
- Social Security Benefits
Scheduling an appointment
Scheduling an appointment is simple, call 888-204-0583 and allow one of DNA consultants to schedule near your city today.
DNA Testing Services By State
How will my DNA samples be collected?
The standard method used to perform a DNA sample collection is buccal swabs. Blood samples are via testing option with the accuracy as buccal swabs.
Alternative DNA samples:
- Hair follicles
- Toothbrush
- Earwax
- Mucus on a tissue/napkin
Please note, forensic samples listed above cannot be used for legal purposes.
Results Turnaround Times
The average turnaround time is 2 to 3 business days from the date all samples arrive at the laboratory.
Privacy
Please note that the IDTO DNA Testing Center’s partner laboratory does 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. DNA samples on file are kept for 3 months on average and then destroyed.
Frequently Asked Questions
Can you do a Sibling DNA test without parents?
Yes. A DNA sibling DNA test can be performed without a parent’s involvement. Please keep in mind if a parent is involved it contributes to increased accuracy of your results.
Can a Sibling DNA Test be wrong
While sibling DNA tests are highly accurate when conducted properly, there is a small possibility of incorrect results. The accuracy of these tests depends on several factors:
- Quality of DNA sample collection
- Analysis by an AABB-accredited laboratory
- Proper handling to avoid contamination, especially for at-home tests
- Inclusion of a parent (if available) to increase accuracy
Results are typically reported as likelihood ratios rather than absolute certainties. For example, “strong evidence” of full siblings is indicated by a likelihood ratio greater than 1000:1. This statistical approach acknowledges that while highly reliable, these tests are not infallible.
Potential sources of error could include:
- Sample contamination
- Lab processing errors
- Misinterpretation of results
To minimize the risk of incorrect results, it’s crucial to follow all testing protocols carefully and use accredited laboratories. If there are doubts about the results, retesting or consulting with a genetic counselor may be advisable.
Can a DNA Sibling test result be used to confirm Ancestry Testing research?
Yes, a Sibling DNA test can be an option to confirm a biological relationship with someone you believe to be your sibling, based on Ancestry research.
Keep in mind that ancestry testing and DNA relationship testing serve different purposes:
- Ancestry Testing: This type of testing is designed to explore ancestral lines and cultural lineages. The results are primarily for entertainment or informational purposes and cannot be used legally.
- DNA Relationship Testing: This testing determines if individuals, such as parent-child, siblings, or grandparent-grandchild, are biologically related. The legal version of this testing can be used for legal purposes.