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Relationship Testing

DNA relationship testing can assist to determine whether alleged relatives really are biologically related. This type of test can be performed between various degrees of relationships including grandparents, aunts and uncles. Canadian DNA Services also offers Siblingship testing to determine if individuals are biological siblings.

Relationship DNA testing is a means of establishing paternity in cases where the father is not available and therefore, a straightforward paternity test is not an option. In such cases a grandparentage test or an avuncular DNA test can substitute a paternity DNA test. Siblings may also do a Siblingship DNA test which will establish the extent of the sibling relationship: half siblings, full siblings or not siblings.

It is also possible to use other members of the family, such as aunts, uncles, nieces or nephews to determine whether there is any biological relationship. These tests are more complex than paternity test; moreover the type of test will depend on who is available for testing and their sex.

By increasing the number of relatives tested, the strength of the genetic evidence increases. Inclusion of additional related individuals may provide more robust statistical data in cases where the results come back inconclusive. If additional related individuals are not available for testing, extended marker testing is recommended. Additional fees apply.

Relationship testing can be carried out even if the individuals who need to be tested live in different Cities or Provinces.

There are two types of relationship tests available: Legal and Private. Our fully accredited laboratory follows the same rigorous high quality standards when processing both legal and private cases, the only difference is in the documentation procedures at the time of collection.

Legal testing clients can choose to come into one of our facilities across Canada or have a mobile unit dispatched to a desired location. During the collection process, the individuals tested are positively identified through photographs and government issued photo identification.  Certified DNA Specialists will perform the collection and all information is documented through a Chain of Custody which ensures all test results are legally admissible.

Private testing is just as accurate as our legal testing but can be performed in the comfort of your own home. You will receive your kit in the mail which includes easy to follow instructions, collection envelopes, mouth swabs, Chain of Custody form and a return, pre-addressed envelope.

Once received at our laboratory, your results will be ready within 5 to 7 business days, or for an additional $100.00 you can add a rush analysis which ensures your results are completed within 3 to 5 business days.

If you have further questions, please view the Frequently Asked Questions page or contact a Certified DNA Specialist toll-free at 1-877-477-5661.

Grandparentage Testing

Grandparentage testing can be used when there are lingering doubts about the paternity of a grandchild but the alleged father is not available for testing. It is also useful to prove that they are biologically related to a grandchild in cases where the child may be denied having a relationship with the grandparents for any number of reasons.

This type of testing is done by recreating the alleged father’s DNA profile by using his parents DNA. Using the DNA profile that has been recreated it is compared to the child’s DNA profile to calculate the statistical probability of the tested grandparents being the biological grandparents of the child.

It is also possible to test for maternal grandparentage in cases where the mother and child were separated early in life and the mother is not available for testing.

In cases where a mouth swab is not an option, a forensic sample can be submitted for analysis.

If you have further questions, please view the Frequently Asked Questions page or contact a Certified DNA Specialist toll-free at 1-877-477-5661.

Avuncular Testing

Also known as an Aunt/Uncle DNA test, this allows a brother or sister of the alleged father to participate in DNA analysis to determine a parental biological relationship with a child.

Avuncular testing may not be as conclusive as a paternity or grandparentage test and in order to achieve the best results possible we recommend testing an aunt or uncle, mother and child. If that is not possible, additional markers can be analysed during testing for an additional cost.

In cases where a mouth swab is not an option, a forensic sample can be submitted for analysis.

If you have further questions, please view the Frequently Asked Questions page or contact a Certified DNA Specialist toll-free at 1-877-477-5661.