Relationship DNA Testing Canada
Determine Biological Relationships Between Family Members
Confidential DNA testing for siblings, grandparents, aunts, uncles, maternity, twins and other family relationships.
SCC Accredited DNA Testing
Results in 7–10 Business Days
Home DNA Test Kits Across Canada
Legal Testing Available with Chain of Custody
Find the Right DNA Test for Your Family Relationship
Forensics Canada Inc. offers a range of DNA relationship tests to help determine biological connections between family members. The appropriate test depends on the relationship you are trying to establish and which relatives are available for testing. Our team can help you choose the most suitable option.
Accredited DNA Testing You Can Trust
Our Relationship DNA Tests
Sibling DNA Test
Determine whether two individuals are full siblings, half siblings, or biologically unrelated.
Grandparent DNA Test
Assess whether a child is biologically related to one or more alleged grandparents, especially when a parent is unavailable.
Aunt & Uncle DNA Test
Determine the likelihood that an alleged aunt or uncle is biologically related to a niece or nephew.
Twin DNA Test
Determine whether twins are identical (monozygotic) or fraternal (dizygotic).
Maternity DNA Test
Confirm whether an alleged mother is the biological mother of a child.
Y Chromosome DNA Test.
Assess whether male relatives share the same paternal lineage.
How Relationship DNA Testing Works - 3 Easy Steps
FAQs – Relationship DNA Tests
In some situations, legal relationship DNA testing may be used to support inheritance, estate, or other official matters. The exact requirements depend on the organization or authority requesting the test, so it is important to confirm their requirements before testing.
Relationship DNA testing is performed using established laboratory methods and statistical analysis. The strength of the result depends on the type of relationship being tested, the number of participants, and which relatives are available. Unlike direct paternity testing, some extended-family relationship tests are reported as a probability or likelihood of relationship.
Contact Forensics Canada Inc. and explain the relationship you are trying to establish and which family members are available. We can help determine which participants and which type of DNA test would be most appropriate.
Legal DNA test results may be used for court or other official purposes when the samples are collected under proper chain-of-custody procedures and identification requirements are followed. Home DNA tests are intended for personal knowledge and are not generally suitable for legal use.
Yes. Depending on the relationship being tested, adding a known biological parent or other close relative can sometimes provide stronger statistical evidence and help produce a more informative result.
Not always. Relationship tests such as sibling, grandparent, or aunt and uncle testing use statistical analysis to determine the likelihood of a biological relationship. In some cases, the result may be less conclusive, and testing additional family members may help strengthen the analysis.
Results are typically available within 7–10 business days after the laboratory receives all required samples. Some specialized tests may take longer depending on the type of analysis required.
Most relationship DNA tests use a simple and painless cheek-swab collection. A sterile swab is gently rubbed inside the mouth to collect cells for DNA analysis.
A home DNA test is intended for personal knowledge and allows participants to collect their own cheek-swab samples. A legal DNA test follows a documented chain-of-custody process, including identity verification and witnessed sample collection, so the results may be used for court or other official purposes.
No. Participants do not normally need to be in the same location. Home collection kits can be arranged for family members living in different cities or provinces. Legal testing may also be coordinated at separate approved collection locations when required.
Yes. Many relationship DNA tests can be performed when a biological parent is unavailable. Depending on the case, siblings, grandparents, aunts, uncles, or other relatives may be tested instead. Including additional known relatives can sometimes strengthen the analysis.
The most appropriate DNA test depends on the biological relationship you are trying to determine and which family members are available for testing. For example, sibling testing may be used for brothers and sisters, grandparent testing when a parent is unavailable, and aunt or uncle testing for an avuncular relationship. If you are unsure, contact Forensics Canada Inc. and we can help identify the most suitable test.
