Assertion: normal cleavage | /r/DefinedAs | cleavage of a zygote
Facets:
value: to a two-celled embryo
type: TRANSITIVE-OBJECT
Source sentences:
text: Normal cleavage was defined as cleavage of a zygote to a two-celled embryo followed by the cleavage of one blastomere at a time up to the five-cell stage.