An Australian woman gave birth to identical quadruplet girls last week, all from one fertilized egg that split into four. The chance of conceiving monozygotic quadruplets is 1 in 1

An Australian woman gave birth to identical quadruplet girls last week, all from one fertilized egg that split into four. The chance of conceiving monozygotic quadruplets is 1 in 15 million, said Alexa Bendall, a maternal fetal specialist. Link Australian woman gives birth to identical quadruplet girls, a medical rarity The chance of conceiving monozygotic quadruplets is 1 in 15 million, a maternal fetal specialist said.