Sibling DNA Test

Reliable Sibling DNA Testing in Canada

Determine Whether You Are Full Siblings, Half Siblings or Biologically Related

Confidential sibling DNA testing for brothers and sisters across Canada.

SCC Accredited DNA Testing

Results in 7–10 Business Days

Home DNA Test Kits Available Across Canada

Legal Testing Available with Chain of Custody

Find Out Whether You Share the Same Biological Parent

A sibling DNA test compares the DNA of two or more individuals to determine the likelihood that they are biologically related.

Testing can help determine whether two people are:

• Full siblings who share both biological parents
• Half siblings who share one biological parent
• Unrelated

The test can be performed even when a parent is unavailable. In some cases, including a known biological parent can strengthen the analysis and help provide a more conclusive result.

Results are typically available within 7–10 business days after the laboratory receives the samples.

Accredited DNA Testing You Can Trust.

  • SCC-Accredited DNA Laboratory.

  • ISO 17025 Standards

  • PhD reviewed results

Sibling DNA Test, DNA Sibling Test, Forensics Canada Inc.

Full Sibling DNA Test

Used when two individuals want to determine whether they share both biological parents.

Half Sibling DNA Test

Used when two individuals want to determine whether they share one biological parent.

Not Sure Which Test You Need?

That’s okay. Tell us what relationship you are trying to confirm and who is available for testing. Our team can help determine the most appropriate DNA test before you order.

How Does a Sibling DNA Test Work? 3 Options

Option 1: In-Person Sample Collection

Option 2: Home DNA Collection Kit

Option 3: DIY DNA Kit (Self-Prepared)

Have Questions About Sibling DNA Test? Ask Our Experts

Understanding Your Sibling DNA Results

Unlike a direct paternity test, sibling DNA testing is a relationship-probability test. The laboratory compares the participants’ DNA profiles and calculates how much more likely the observed DNA is if the individuals are siblings rather than unrelated.

In some cases, adding a known biological parent can increase the strength of the analysis.

Do both siblings need to provide DNA samples?

Yes. The individuals whose biological relationship is being tested must each provide a DNA sample. The most common collection method is a simple cheek swab.

What if I am not sure which relationship DNA test I need?

Contact Forensics Canada Inc. and tell us which family members are available for testing and what biological relationship you are trying to determine. We can help you identify the most appropriate relationship DNA test before you order.

Can siblings living in different cities be tested?

Yes. Participants do not normally need to be in the same location. Arrangements can be made for sample collection in different locations, depending on whether you require a personal or legal DNA test.

How much does a sibling DNA test cost?

Our sibling DNA test starts at $349. Additional fees may apply depending on the number of participants, the type of testing required, and whether legal chain-of-custody collection is needed.

How long does a sibling DNA test take?

Results are typically available within 7–10 business days after the laboratory receives all required samples.

Can sibling DNA test results be used in court?

Legal sibling DNA testing may be used for legal purposes when samples are collected under an approved chain-of-custody procedure and identification requirements are followed. Home DNA tests are intended for personal knowledge and are not generally intended for court use.

How are sibling DNA samples collected?

DNA is usually collected using painless cheek swabs rubbed gently inside the mouth. For a personal knowledge test, samples may be collected at home. Legal tests require controlled sample collection and proper chain-of-custody procedures.

Can a sibling DNA test determine whether we share the same father?

It may help determine whether two individuals are likely to share a biological parent. If the goal is specifically to determine whether two people share the same father, including a known biological mother when available can strengthen the analysis.

How accurate is a sibling DNA test?

Sibling DNA testing uses statistical analysis to calculate the likelihood of a biological sibling relationship. Unlike a direct paternity test, sibling results are expressed as a probability rather than simply a near-100% inclusion or exclusion. In some cases, additional family members may be recommended to strengthen the result.

Can sibling DNA testing be done if a parent is unavailable?

Yes. The individuals whose biological relationship is being tested must each provide a DNA sample. The most common collection method is a simple cheek swab.

What is the difference between full siblings and half siblings?

Full siblings share both biological parents. Half siblings share only one biological parent.

What is a sibling DNA test?

A sibling DNA test compares the DNA of two or more individuals to determine the likelihood that they are biologically related as full siblings, half siblings, or unrelated.

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