Required participants for test: 2 Alleged idential twins (unless otherwise noted by the courts)
Optional participant: One or both alleged or known parent(s) of the 2 Alleged Twins
Probability of Zygosity will indicate either: <0% or >99%
EXCLUSION = <0% (There is a 0% chance that they are identical twins)
INCLUSION = >99% (There is a >99% chance that they are identical twins)
If the profiles of the twins tested are different, then it is determined that the tested twins are fraternal. Otherwise, if their DNA is identical, then a probability of being identical is computed.
* A chain-of-custody is required for legal testing. A $35 collection fee to establish a chain-of-custody is added for each participant.
