DNA Twin Testing $150

DNA Twin TestingThere 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.

Code Test Type Turnaround Time Cost
P-983 Twins 3 to 5 business days $150
P-980 Triplets 3 to 5 business days $245

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 Testing Procedure

  • Order the private DNA Twin Test kit online or by telephone toll free at 1-877-714-6360.

  • 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 business 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.

2 Easy Ways to Order

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Mon to Fri, 8AM to 5PM PST / 11AM to 8PM EST

1-877-714-6360

All testing kits are shipped immediately

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