Twin Zygosity DNA Test

Family relationship answers you can trust. The Twin Zygosity DNA Test is ideal for a mother who wants to validate the determination of fraternal vs. identical twins.

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Why Choose Our Twin Zygosity Test?

Clear the Doubt

Usually, when twins are born, the physician is able to tell whether twins are identical or fraternal by examining the placenta. However, if there is doubt about the determination that was made at the time of birth, a Twin Zygosity DNA test will reveal the truth.

DNA Profile Matching

This test compares the twins' DNA profiles to see whether they are a match. If they are an exact match it proves they are identical twins.

Establish Paternity Factors

A set of identical twins will share the same father. Unlike identical twins, fraternal twins can have two different fathers.

100% Accuracy

Our accredited laboratory utilizes a 24-marker testing standard to provide 100% accurate relationship testing results.

Simple 3-Step Process

1

Sample Collected

For most tests, a swab is taken from all participants. The collection process is fast, painless, and highly secure.

2

Advanced Lab Analysis

Collected specimens are shipped to our accredited lab for testing and comparison.

3

Receive Your Results

A specialized report will be provided indicating the strength of any relationship that may exist.

Here's What You'll Get:

  • Statistical report showing the likelihood that the tested parties are related.
  • Specialized collection kit and return shipping to the lab.
  • The fastest results in the industry!
  • Conclusive determination on whether the twins are fraternal or identical.

Twin Zygosity DNA Test

Determine whether a set of twins are fraternal or identical.

$299.00
  • Base Test Participants (1 Set of Twins) Included
  • Lab Processing & 24 Marker Analysis Included
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Twin Zygosity Testing FAQs

What is a Twin Zygosity DNA test?

A twin zygosity test is a definitive DNA analysis used to determine whether twins are identical (monozygotic) or fraternal (dizygotic). While physical appearance or ultrasound results can sometimes provide clues, comparing the twins' exact DNA profiles is the only way to know with 100% certainty.

Why should we get a twin DNA test?

Many families choose to test simply for peace of mind and personal curiosity. However, knowing your twins' exact zygosity can also be vital for medical reasons later in life, such as determining blood compatibility, assessing disease risks, or evaluating suitability for tissue and organ donation.

How is the DNA sample collected from twins?

The collection process is completely painless and safe for twins of any age, including newborns. We use a gentle buccal (cheek) swab to collect cellular material from the inside of each twin's mouth. No needles or blood draws are required.

Can this test be used for triplets or other multiples?

Yes. We can perform zygosity testing for triplets, quadruplets, and other higher-order multiples to determine exactly which siblings are identical and which are fraternal.