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Imaginal Disks

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Imaginal Disks 

histoblasts, clusters of undifferentiated cells in the bodies of the larvae of insects, nemerteans, and echinoderms, from which the final (definitive) organs are formed during the metamorphosis of the larva to the adult animal. Specifically, imaginal disks are characteristic of all insects with complete metamorphosis and of some with complex incomplete metamorphosis (Aleyrodidae, Coccidae).



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Gehring's group added to fruit flies copies of the vertebrate genes that had been engineered to become active in imaginal disks, embryonic tissues that give rise to adult insect structures like wings and legs.
Just before an insect larva changes into a flying adult, it develops white globs of cells called imaginal disks that later become its wings, explains Sean B.
 
 
 
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