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What is Twins DNA Testing?

In most cases, it may seem obvious that two siblings are identical twins by looking at them; but in cases where they have slight differences in physical appearance, it may be necessary for a Twins DNA Test.

Identical Twins

Identical, or monozygotic, twins will have an exact DNA profile. When the sperm met the egg, the zygote (baby to be) split and formed two embryos. Because the DNA contributed by the parents came from the same sperm and egg, the two children inherit the same DNA.

Fraternal Twins

Fraternal, or dizygotic, twins will not have an exact DNA profile. When the mother released two or more eggs, they were fertilized by separate sperm; fraternal twins are related in the same way as siblings.

Probability of Identical Twins

Identical DNA shared between two siblings that are not identical twins is highly unlikely. Due to the extremely low probability, it can be concluded that an exact match confirms the identical twin relationship.

In the event that the mother is unsure whether the two children are from the same father (which can happen, even if they were born together), we can perform a Sibling DNA Test in conjunction with the Twin DNA Test at no extra charge.

Twins DNA Test Details

Participants This test requires two or more siblings perceived to be twins.
Home DNA Kits Make Your Own DNA Kit using cotton swabs (e.g. Q-Tips) and standard mailing envelopes. GFI DNA Collection Kit with Free Shipping for US Orders.
Payment We accept Paypal and all major credit cards (Visa, Mastercard, Discover, and American Express). For discrete payments, we suggest purchasing a pre-paid credit card available at most retailers.
Results The results will show the likelihood the two individuals are identical or not (fraternal).

Order a Twins DNA Test

* = Required Field
Which DNA Test Do You Need?
* What is the Case ID from the previous case? What's This?
* What is the Case Password from the previous case? What's This?
* What is the AccuPlexDNA from the previous case? What's This? Standard: 16 Marker Test ($50 per person)
AccuPlex26: 26 Marker Test ($100 per person)
AccuPlex41: 41 Marker Test ($150 per person)
* How many people will be tested? What's This? Alleged Father(s)
 Alleged Aunt(s)/Uncle(s)
 Alleged Grandparent(s)
 Alleged Sibling(s)
 Alleged Twin(s)
 Alleged Mother(s)
 Males(s)
 Item(s) of Evidence
 Reference Sample(s)
 Child(ren)
 I am including the mother's sample
 I am NOT including the mothers's sample.
 I am including the father's sample.
 I am NOT including the Father's sample
* Choose the AccuPlex DNA for this DNA test. What's This? This test is only offered as AccuPlex41. Standard 16 Marker Test ($50 person)
AccuPlex26 Upgrade ($100 person)
AccuPlex41 Upgrade ($150 person)
* How will you collect the DNA? What's This? Infidelity DNA Tests are Make Your Own DNA Kit only. Make Your Own DNA Kit
GFI DNA Collection Kit
* Will you submit, if any, non-standard sample(s)? What's This?
* Please choose a shipping method. What's This? US Standard: 5-7 days ($FREE)
US Express: 1-3 days ($25)
US Express + Return Shipping ($50)
International Shipping ($75)
Do you need rush processing? What's This? Yes ($250)
DNA Test:
Participants:
AccuPlex Upgrade:
Collection Method:
Collection Options:
Rush Processing:
DNA Name:
DNA Options:
DNA Totals:
Final Price:
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GFI Lab – 681 Main Street – Rockwood – PA 15557 – USA – © Copyright Gaskin Forensics, Inc. 2005-2011

GFI Lab is a DNA Testing Laboratory for Family Relationships. DNA Tests include Paternity, Sibling, Aunt / Uncle, Grandparent, and More!