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单词 animal hemisphere
释义

> as lemmas

animal hemisphere
animal hemisphere n. Embryology the upper region of an ovum or blastula, which is free of yolk or occupied by small, rapidly dividing cells with little yolk; contrasted with vegetal hemisphere.
ΚΠ
1879 tr. E. Haeckel Evol. Man I. viii. 214 This process..is really nothing but the inversion of the vegetative hemisphere into the animal hemisphere of the germ-vesicle.
1951 G. R. de Beer Vertebr. Zool. (ed. 2) xv. 208 The rim of the blastopore arises along the margin separating the protoplasmically-rich cells of the animal hemisphere from the cells rich in yolk..of the vegetative hemisphere.
2006 Jrnl Cell Biol. 174 304/2 Overexpression of M-PAPC in the animal hemisphere of the X. laevis embryo consistently cause failure of blastopore closure during gastrulation.
extracted from animaladj.
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as lemmas
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