Journey Genetic Testing 1-855-362-5224

Zygosity DNA Test



What is included when you order a Twin Zygosity test:

  • A 21+ marker Twin Zygosity DNA test;
  • USPS Priority shipping of a DNA collection kit;
  • Step-by-step instructions;
  • A prepaid FedEx overnight return label;
  • All lab processing fees;
  • Results from our AABB accredited testing laboratory.

Who is included: Two siblings who want to know if the are identical or fraternal twins.  Additional siblings may be added  on the order form below.

How we send the DNA collection kit: USPS Priority mail. You will by emailed a tracking number when the kit ships. You have the option of sending additional testing kits to other addresses if needed. Please indicate additional kits and addresses on the order form.

When your results will be ready: 1 business day after the lab receives all of the DNA samples.

Payment Options: We offer several ways to pay when you order a paternity DNA test. You can choose to pay with a credit or debit card, and PayPal.

SKU: ZYG - Twin Zygosity Category:



REAL CLIENT REVIEWS    You can read more of our firsthand reviews from customers who have done their DNA testing through our company by clicking on CLIENT REVIEWS. We take pride in delivering a top-notch 5-star customer experience. Reach out to us with any questions. We look forward to helping you on your journey to truth through DNA.

Happy Customer!

December 4, 2023

I could not be happier with the service they provided and the results I got!

Jennifer R


August 6, 2023

Could Not Have Been Easier

Jennifer O


July 18, 2023

Fantastically fast results! Would definitely recommend!

Natalie G

Recommended for DNA tests

June 5, 2023

Love the ease of ordering the test! The results were delivered to me quickly, privately, and in a secure manner. This could not have been easier.

Heather L

Good Experience

December 15, 2022

Fast, professional and they value you your privacy. Instructions are self explanatory and easy.

Amanda D