Discoidal Cleavage

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discoidal cleavage [dis′kȯid·əl ′klē·vij]

(embryology)

A type of cleavage producing a disc of cells at the animal pole.

Discoidal Cleavage

a type of egg cleavage in animals with telolecithal eggs (scorpions, cephalopod mollusks, cartilaginous and bony fish, reptiles, and birds). In discoidal cleavage, only a small disk of nucleus-containing cytoplasm divides, and this disk is relatively free of the yolk.

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