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Twin Zygosity Test Print
ImageA twin zygosity DNA test determines if twins are identical or fraternal.

This DNA test is based on whether or not the two twins have identical DNA profiles. Identical twins will have the same DNA profiles, as they prenatally developed from the same zygote during gestation. Fraternal twins will have similar, but not identical, DNA profiles, having developed in two separate zygotes during gestation. Fraternal twins’ DNA profiles will be as similar as two non-twin siblings.

You can learn more about and order our twin zygosity DNA test, paternity testing, and other DNA testing services by contacting one of our customer service representatives at 0808-234-7027.