$149
Bio-Gene Twin Zygosity DNA Test performs the testing by using 25 DNA markers to examine and compare each sibling’s DNA. Identical twins will match on all 25 markers. If 24 or fewer markers match, then they would be excluded as being identical twins. In the event that the mother is unsure whether the two children are from the same father (which can happen, even if they were born together), they can perform a sibling DNA test in conjunction with the zygosity DNA test at a nominal extra charge.
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Bio-Gene DNA - Twin Zygosity Test
Bio-Gene DNA performs the testing by using 25 DNA markers to examine and compare each sibling's DNA. Identical twins will match on all 25 markers. If 24 or fewer markers match, then they would be excluded as being identical twins. In the event that the mother is unsure whether the two children are from the same father (which can happen, even if they were born together), they can perform a sibling DNA test in conjuction with the zygosity DNA test at a nominal extra charge.
$149
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