Monozygotic Twins %28Identical Twins%29
Here's your citation in American Psychological Association (APA) format:
Monozygotic Twins %28Identical Twins%29. (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Monozygotic+Twins+%2528Identical+Twins%2529