1-855-DNA-LAB4U (362-5224)

Twin Zygosity Test

Determine Whether Your Twins Are Identical or Fraternal

Understanding whether twins are identical (monozygotic) or fraternal (dizygotic) provides valuable insights into their genetic relationship. Our Twin Zygosity Test offers a simple, 100% accurate, and non-invasive method to determine twin type, aiding in medical, legal, and personal contexts.

What Is a Twin Zygosity Test?

A Twin Zygosity Test analyzes DNA samples from each twin to assess their genetic similarity. Identical twins originate from a single fertilized egg that splits into two embryos, sharing nearly identical genetic material. Fraternal twins result from two separate eggs fertilized by different sperm, sharing approximately 50% of their DNA, similar to regular siblings.

Why Consider a Twin Zygosity Test?

  • Personal Knowledge: Satisfy curiosity and gain a deeper understanding of your twins’ relationship.
  • Medical Insights: Identical twins may share susceptibility to certain genetic conditions. Knowing zygosity can inform healthcare decisions.
  • Legal Purposes: In cases involving inheritance or custody, establishing twin type can be pertinent.

At-Home vs. Legal Testing

  • At-Home Testing: Designed for personal knowledge, this option allows you to collect samples at your convenience. While not court-admissible, it provides the same level of accuracy as legal tests.
  • Legal Testing: Follows a strict chain-of-custody protocol, including verified sample collection and documentation, ensuring the results meet legal standards and are admissible in court.


If you need a legal test, please contact one of our Genetic Consultants at 1-855-DNA-Lab4U (362-5224) to discuss your case prior to ordering.

How Does the Testing Process Work?

Does the Testing Process Work?

  1. Order the Test Kit: Choose between at-home or legal testing options.
  2. Collect DNA Samples: Use the provided cheek swabs to collect samples from each twin.
  3. Submit Samples: Send the samples to our accredited laboratory using the prepaid envelope.
  4. Receive Results: Your results will be securely delivered digitally in 1 business day after sample receipt.

Twin Zygosity DNA Test

Peace of Mind Test
$ 109
00
  • Fast 1 - Business-Day Results
  • One Set of Twins (Additional
    Multiples Can Be Added)
  • Affordable and 100% Accurate
  • All-inclusive - no hidden fees
ORDER A TWIN ZYGOSITY TEST
Cost includes priority shipping, all collection materials, detailed instructions,
all lab fees, and free overnight return shipping.*
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