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Twin Zygosity DNA Testing $150
Results available in 3 to 5 working days.
There are two different types of twins: Identical twins, and fraternal twins. When twins are the same sex, it is often impossible to tell for certain whether they are identical twins or fraternal twins. DNA twin zygosity testing can conclusively determine whether twins are identical or fraternal.
| PID# | Test Type | Turnaround Time | Cost | |
| 2T | 2 individuals | 3 to 5 working days | $150 | order » |
| 3T | 3 individuals | 3 to 5 working days | $245 | order » |
Online orders can be placed 24/7 and will be shipped the same business day. Next business day express courier shipping available in US and Canada only. International orders are shipped via priority air mail.
Identical Twins
Identical twins are twins which originated from the same egg and the same sperm. They are genetically identical and are always the same sex. Although identical twins usually look very similar, it is sometimes possible for identical twins not to look exactly the same.
Fraternal Twins
Fraternal twins originated from two different eggs and two different sperm. Fraternal twins are the same as siblings which are born at different times and can be the same or different sexes. Like other siblings, fraternal twins can look very similar or can be very different in appearance.
At the time of delivery, the delivering physician tries to determine whether twins are identical by seeing whether they share the same placenta. However, this is not always clear and is not always an accurate way to determine whether twins are identical or fraternal. When twins are the same sex, the most conclusive method for determining twin zygosity is through DNA testing. Identical twins will share identical DNA profiles, and fraternal twins will have different DNA profiles from each other.
Guide for Twin Zygosity Testing Procedure:
Order the private DNA twin zygosity test kit online or by telephone.
Follow the easy instructions for collecting a mouth swab sample from the individuals. The sample is collected in just seconds by rubbing the swabs provided in the kit gently inside the mouth.
After sample collection, return the samples to our laboratory using the return packaging included in your test kit. Results are available in just 3 to 5 working days. You are welcome to call our laboratory at any time to check on your test and to get preliminary results over the telephone using your password and file number. Official results documents are sent to you by mail or Email after the test is complete.
Highest Standards
All tests run 2x using 16 loci STR DNA technology
Easy to use home DNA collection kit
Quick, painless, discreet mouth swab collection kit
Results in 3 to 5 working days
Special Situations
Split Kit
If the parties to be tested live in different cities, provide the name and address of both parties in the comments box and the kit will be split and sent to two addresses. The kits have the same barcodes, so you can take the test separately and mail them back to the laboratory separately. Once the kits are received, they are tested together.
If the parties to be tested live in different cities, provide the name and address of both parties in the comments box and the kit will be split and sent to two addresses. The kits have the same barcodes, so you can take the test separately and mail them back to the laboratory separately. Once the kits are received, they are tested together.
Legal Testing GuaranteeThe private test is the best solution for those who need to find out the truth about paternity before deciding on the next step. If, after you receive the results of your private test, decide that you need the legal test, the full cost of the private test will be deducted from the legal testing cost, so you don't need to pay twice!
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