Twin Testing
- 2 working day results available from £145*
- Royal Mail Tracked 24 as standard or you can pay a little extra for Guaranteed Next Day Delivery.
- Paid for, tracked, return envelope included as standard
- UK based customer service and laboratory. We will never send your samples to another company for processing
- No parental samples required.
* From the time we receive your samples in the laboratory.
Have you always wondered whether you and your twin, or your twin children are biologically identical? At thatDNAcompany® we can answer that question for you with up to 100% certainty based on the samples we receive.
The definitive way to determine if twins are identical or non-identical (also known as 'fraternal' twins) is to carry out a twin DNA test, commonly known as a Zygosity test.
A simple cheek cell sample from each of the twins will give our laboratory all we need to provide you the answer. All processing from the beginning of your order to the end is performed by thatDNAcompany® in our UK based laboratory. We will never send your samples abroad or to any other company for processing meaning the result can be provided to you sooner!
All shipping is in the hands of Royal Mail and so we cannot be held responsible for any postage delays. Therefore, if you would like to guarantee timely delivery, we recommend you select Guaranteed Next Day Delivery before 1pm and also top up the return package at the Post Office to the same. Fees for which are to be paid by the customer.
How do twin DNA tests work?
In the laboratory we will test the DNA samples from the twins using 23 markers to determine if they are genetically identical at all the DNA markers, or if they have similar but different DNA profiles, as is expected with full siblings (i.e non-identical twins).
This produces extremely accurate results which will conclusively determine if twins are identical or not.