Dictionary > Complete cleavage

Complete cleavage

Definition
noun
(embryology) The complete division of an isolecithal or microlecithal egg into blastomeres.
Supplement
Depending mostly on the amount of yolk in the egg, the cleavage can be holoblastic (complete or total) or meroblastic (partial). The holoblastic type of cleavage is commonly seen in eggs containing moderate to sparse amount of yolk. Examples of animals with eggs that divide holoblastically include the amphibians, mammals, echinoderms, annelids, flatworms, nematodes, etc.
Synonyms:

  • compete cleavage
  • total cleavage

Compare: meroblastic cleavage


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