Paternity For Life
Servicing World Wide - 1300 172 837 Australia
Important Update Regarding COVID-19 and DNAQ
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At DNAQ, we are following all current advice provided by the Australian Government, local health authorities and the World Health Organization (WHO), and taking extra precautionary steps to ensure the health and safety of our laboratory staff and customer service team to minimise any disruption to testing

Please be advised our laboratory is still operational, and we are currently not experiencing any delays with processing of samples.

For all non-legal testing, a testing kit can be sent directly to your home address. You can simply collect the sample yourself at home, and post it back to DNAQ in the supplied prepaid return envelope. Legal Collection appointments are also still available at our laboratory in Brisbane upon request. However, if you are experiencing any virus-like symptoms or have travelled overseas in the past 14 days, we recommend delaying your collection or rescheduling your appointment to a later date.

If you have any questions or concerns, please don’t hesitate to contact our friendly staff on 1300 172 837.

Twin Zygosity Test

Identical twins (monozygotic twins) are conceived when a single sperm cell fertilises an ovum and the ovum splits, forming two zygotes with identical copies of DNA. Fraternal twins (heterozygotic twins) are conceived when two different ova are fertilised by two different sperm cells, resulting in two zygotes with different DNA profiles.

Quite often, parents can be misinformed during pregnancy and at birth regarding whether their twins are identical or fraternal. Ultrasounds may display one or two placentas during pregnancy. However, it is possible for identical twins to have separate placentas so this is not always a reliable indicator. Identical twins may not always have identical appearances, and non-identical twins can look very similar.

The only way to accurately confirm if twins are identical is through DNA testing. As identical twins are both from one egg, they will share the exact same DNA profile. Fraternal twins will not. A Twin Zygosity test will compare the DNA profile of the twins tested to confirm whether they are identical or not.

Why would I have a Twin Zygosity test?

Twin Zygosity testing can be completed out of curiosity, or for peace of mind purposes. However, it can also have important medical implications, including:

  • Identical twins will have the same blood group, and can donate blood to each other.
  • Identical twins may be able to donate organs to one another, with a much lower risk of rejection.
  • Assessing disease risk. If one twin has been diagnosed with a disease, knowing if the twins are identical can allow for early testing and diagnosis in the other twin.

Collecting Your DNA Sample

Upon receiving your application and payment, DNAQ will send a collection kit to your nominated address. This kit will contain everything you need to collect the samples, along with clear instructions on how to do so. We use mouth swabs for a quick and painless collection process. Once the samples have been collected, they are then returned to us in the supplied return envelope.

Results

Results will be available within 5 working days from receipt of your samples at our laboratory. Results will only be sent to the parties being tested (or their legal guardian), to the email addresses provided at time of sample collection.

Please note that the results from Twin Zygosity testing are for peace of mind purposes only, and are not legally admissible.

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DNAQ - Australia's Paternity Testing Specialists Brisbane

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