Siblingship Testing

There are a number of different scenarios that can be run when determining if individuals are biological siblings. These include full versus half, full versus unrelated and half versus unrelated. For individuals who know they share one parent and are wondering if they share both parents, a full versus half test can be done.

For individuals who are unsure if they share both parents and want to know if they are full siblings or unrelated, a full versus unrelated test can be done. Lastly, for individuals who may share one parent or be unrelated, a half versus unrelated test can be performed.

Generally, 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.

There are two types of Siblingship 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.

For our 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.

Twin Zygosity

Curious whether your twin and you are identical (monozygotic) or fraternal (dizygotic)? Our twin zygosity testing can answer that question.

Identical twins are formed when one egg is fertilized by a single sperm cell and then divides within the first few days of pregnancy. Twins produced by this process are referred to as identical since their DNA sequence is identical. Fraternal twins are formed when two eggs are independently fertilized by two sperm cells. Fraternal twins do not have identical DNA but will have half of their DNA in common, just like siblings of the same parents that are born at different times. Fraternal twins can either be of the same sex or different sex.

The sample is collected by a simple mouth swab on the inside of the cheek.

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.