$150
There are two different types of twins: Identical twins, and fraternal twins. When twins are the same sex, it is often impossible to tell for certain whether they are identical twins or fraternal twins. DNA twin zygosity testing can conclusively determine whether twins are identical or fraternal.
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DNA Testing Center of America - DNA Twin Testing
There are two different types of twins: Identical twins, and fraternal twins. When twins are the same sex, it is often impossible to tell for certain whether they are identical twins or fraternal twins. DNA twin zygosity testing can conclusively determine whether twins are identical or fraternal.
$150
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