Order Test Zygosity Testing Fees FAQs Customer Login Contact Us About Us Our customers say... "Although it has been a while since I received the results, I just wanted to say thank you.  I was so pleased to finally learn whether or not my twin boys were identical.  Having undergone fertility treatment and knowing that two eggs were released, I was certain they were fraternal.  However, they look so darned much alike that even I get them confused momentarily on occasion.  Thank you for confirming my hunch that they are identical.  It was great fun receiving the information- almost like having twins all over again.  I am sure we will use it to assist us in making some of the critical parenting decisions that we will encounter in the future." -Holly (Claymont, DE) more...			February 8, 2010 Affordable, accurate DNA zygosity testing for twins and triplets. Sometimes it is unclear whether same-sex twins or triplets are genetically identical or fraternal. A bloodless zygosity test offers conclusive evidence. DNA is easily obtained from cheek swabs and returned to our lab for analysis. Click here to see the benefits that Proactive Genetics can offer to you and your twins or triplets.         If you find the technical terminology of genetics confusing, check out our FAQs and glossary to help you to answer your questions about zygosity testing.   Current customers can check the status of their order here. Estimated date of results delivery is available, along with confirmation that we have received your DNA samples.
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