How is twin DNA testing performed?
It’s very easy since the same DNA is found in every cell in the body. We will send regular, cotton-tipped swabs and a vial containing buffer solution through the mail. The twins (or parents of twins) should rub the inside surfaces of their mouths with the cotton swab, painlessly removing cells from the surface of the cheek and gum. The swabs should then be mailed back in the envelope we provide. We will analyze the DNA from these cells and be able to determine if the twins are identical or fraternal.
