What is the need for a twin zygosity test?
Most people desire a zygosity test to satisfy their curiosity. However, there are some health conditions with where it would be useful to know if a condition experienced by one twin will be likely to be experienced by the other twin. Identical twins can donate organs to each other in certain situations. For important medical decision making, we strongly suggest obtaining a test with an accredited lab which includes supervised sample collection and a chain of custody. We would be glad to provide a referral.
