Twin Zygosity Testing

twin test kit

What is a Twin Test?

Twin Zygosity Testing also known as a Twin Test is a DNA test that determines whether twins are identical or fraternal. This test helps identify the genetic relationship between twins by analyzing their DNA profiles.

Where to buy an At-Home Twin Zygosity Test kit?

To purchase an At-Home Twin DNA test order by phone at 973-609-5102 or to purchase online by clicking the buy button below.

How much does a Twin DNA Test cost?

At-Home Maternity Test Kit costs start at $299.99.

At-Home DNA Test Kit Contents

1. Sterilized Cheek Swabs
– Each packet contains 2 swabs per person for sample collection.

2. Contact Identification Form
– A form to be filled out with the necessary contact and identification information.

3. Sample Collection Instructions
– Detailed instructions on how to properly collect cheek swab samples.

4. Prepaid Return Shipping Envelope
– A prepaid overnight FedEx envelope for convenient and secure return.

Contact our office at 973-609-5102 to schedule an appointment today in a city near you nationwide.

Legal DNA Twin Test costs start at $499.99 and up. 

When will I receive me DNA results?

The turnaround time for results is 2 to 3 business days from the date the lab received all genetic samples.

How accurate are my Twin Zygosity Test results?

Maternity tests, like paternity tests, are highly accurate testing option. All DNA tests are performed using between 18 and 24 genetic markers.

DNA samples are analyzed by our partner AABB accredited laboratory which ensure all specimen samples are tested at highest industry standards.

Are my test results private and confidential?

Yes. Your DNA results are kept private and will only be released to the parties involved with your DNA test.

In the event, the lab receives a court order will results be released to a third party but not before the customer has been notified. All DNA specimens are destroyed within 30 to 60 days.

Are identical twins DNA the same?

Identical twins, while extremely similar genetically, do not always have exactly the same DNA. Below are some of the key reasons why.

  • Genetic variations: Approximately 15% of identical twin pairs may have one twin with notable genetic differences from the other.
  • Post-zygotic mutations: A study of 381 twin pairs found a median of 14 genetic mutations that occurred after the initial zygote formation, leading to differences between twins.
  • Variability in differences: While some twin pairs (38 out of 381) showed no detectable genetic differences, others (39 pairs) exhibited more than 100 distinct mutations.
  • Challenge to assumptions: These discoveries contradict the long-held belief that identical twins are genetically indistinguishable.
  • Scale of differences: Although the average number of genetic mutations causing differences between identical twins is relatively small, the existence of any differences is scientifically significant.

In conclusion, while identical twins share remarkably similar DNA, they are not always perfect genetic matches. This insight opens up new avenues for research and necessitates a reevaluation of twin-based studies across various scientific disciplines.

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