Assertion: zygote | /r/CapableOf | split two embryos
Facets:
Source sentences:
text: Identical twins are monozygotic, meaning that they develop from one zygote that splits and forms two embryos.
text: Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.