Question
Fri November 25, 2011 By: Manashvini B Baskaran

What is holoblastic cleavage? When does it occur?

Expert Reply
Sat November 26, 2011
The complete division of an isolecithal or microlecithal egg into blastomeres is called holoblastic cleavage.
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.

Holobalstic cleavage can be equal cleavage or unequal cleavage

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