We receive many questions about zygosity, that is, whether you and your twin are identical or fraternal. We hope you find the following pages helpful. If you still have questions that aren’t answered here, send an email to ws.twinregistry@wsu.edu.
We receive many questions about zygosity, that is, whether you and your twin are identical or fraternal. We hope you find the following pages helpful. If you still have questions that aren’t answered here, send an email to ws.twinregistry@wsu.edu.