What Is The Difference Between Identical vs. Fraternal Twins?
Identical twins come from one fertilized egg, called a zygote. The zygote, which usually develops into one child, grows and splits early in development to form two embryos-identical twins. Because the twins come from one egg and one sperm they have exactly the same DNA. Fraternal twins develop when there are two different eggs in the mother’s womb that are fertilized by two different sperms. Fraternal twins will not have exactly the same DNA. Like other siblings they can be expected to share some of the DNA they inherit from both parents.
