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A member asked:
Are fraternal or identical twins more common?
2 doctors weighed in across 2 answers
Yes: Fraternal twins are 3 times as frequent as identical. Fraternal twins happen when there is double ovulation and 2 eggs get fertilized. They are the type of twins that run in families. Identical twins come from 1 fertilized egg which separate in early gestation. Depending on when they separate, the babies can be in 2 distinct sac (di/di), 2 sacs within a shared sac (mono/di) or 1 sac (mono/mono).
Answered 7/5/2017
6.6k views
Fraternal: More than 30% are monozygotic twins and nearly 70% are dizygotic. http://www.bjmg.edu.mk/record.asp?subrecordid=571 http://www.Sogc.Org/health/pregnancy-multiple_e.Asp.
Answered 12/9/2013
5.4k views
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