Sibling Test

Select Your Sibling Test:

Pricing is all inclusive (includes all laboratory processing fees, and delivery of the reports).

Private Sibling Test

2 siblings $150 USD Order »
 
3 siblings $245 USD Order »
 
4 siblings $340 USD Order »
 
5 siblings $435 USD Order »
 
6 siblings $530 USD Order »
 
7 siblings $625 USD Order »
 
2 siblings, 1 mother $245 USD Order »
 
3 siblings, 1 mother $340 USD Order »
 

Legal Sibling Test Learn more about legal testing

2 siblings $255 USD Order »
 
3 siblings $350 USD Order »
 
4 siblings $445 USD Order »
 
5 siblings $540 USD Order »
 
6 siblings $635 USD Order »
 
7 siblings $730 USD Order »
 
2 siblings, 1 mother $350 USD Order »
 
3 siblings, 1 mother $445 USD Order »
 
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Let our team of Dedicated Technical Support Experts help you place an order or find the right test for you!

Call us anytime at 1-877-714-6360. Laboratory hours are 8AM to 5 PM PST, 11AM to 8PM ET, Monday to Friday (except statutory holidays).

Or you can email us at support@geneancestry.com.

We want to be there for you every step of the way! If you have any questions, please do not hesitate to contact us at any time.


Sibling Test

Private Knowledge DNA Sibling Test

Starting at $150

After ordering this test, a buccal swab collection kit will be sent to you. Follow the instructions provided in the kit to collect a fast and simple mouth swab sample from the alleged siblings using the swabs provided in the kit. The sample collection process is simple and painless and takes only a few seconds to complete. After sample collection, return the sample to the laboratory for testing using the return package included in the kit. Once the laboratory receives your samples, testing begins immediately and the results are available within 3 to 5 business days. The full genetic report and results document will be sent to you by mail and email.

What if the siblings live in different cities?

If the individuals to be tested live in different addresses, the kit can be split and sent separately to each address. To request a split kit, please write "Split kit please" in the comments box of the order form. Please also indicate the name and shipping address for each sibling.

How does the sibling test work?

The DNA sibling test examines the Autosomal STR markers in each alleged sibling and then compares them to generate a sibling index. If the sibling index value is greater than 1.00, it would indicate that the alleged siblings are more likely to be true biological siblings. If the sibling index value is below 1.00, it would indicate that the siblings are more likely not to be related. The higher the sibling index value is above 1.00, the greater the likelihood that the siblings are biological siblings. To analyze whether siblings are full siblings or half siblings, a full sibling index value and a half sibling index value are generated. If the full sibling index value is greater than the half sibling index value, then the siblings are more likely to be full siblings than half siblings. If the half sibling index value is greater than the full sibling index value, then the siblings are more likely to be half siblings than full siblings.

Will testing the mother increase the power of the sibling test?

Yes, if the siblings definitely have the same mother but unsure about the father, adding the mother to the sibling test can increase the power of the sibling test. If the mother is not available for testing, the sibling test can be performed without the mother.

Is there an age limit?

No, the sample can be collected from individuals at any age, even newborns.

Is there a time limit for using the kit?

The unused kit will remain stable indefinitely at room temperature so you can use it at any time after you receive it. Once you open the kit and collect the samples, the sample will remain stable for at least 3 months after sample collection.

How long does the test take and how will I receive the results?

The turnaround time for testing is 3 to 5 business days after your samples arrive. At the time that you place the order, you can choose to receive your results by email, mail or both. If you had chosen email as the method for receiving your results, your results will be sent to you by email the same day that testing is completed.