Twin Zygosity Testing | Identical Twins Learn More Home DNA Test For Twins What is a Twin Zygosity Test? A Zygosity DNA Test is a test that determines whether twins are identical or fraternal. Identical twins have the same DNA, while fraternal twins have different DNA. A Twin Zygosity Test can be performed with a blood test or a cheek swab. Getting Started Is Simple: 1. Order your home DNA test kit by phone by calling 866-205-8356 . 2. After you purchase your kit. Your kit will be shipped out to your home with 24 hours. 3. Upon receipt of your kit, follow the enclosed instructions on how to collect your DNA samples. 4. Place samples back into the prepaid return shipping envelope going back to the lab . 5. Once the lab receives all genetic samples involved with your test. please allow 5 to 7 business days for testing to be completed . 6. Upon completion. A copy of your result will be mailed to your home and another copy will be emailed to you the same da...
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