| 单词 | yolk cleavage |
| 释义 | > as lemmasyolk cleavage yolk cleavage n. division of the ooplasm or yolk (sense 1c), esp. as the initial process in the development of the embryo. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > conception > [noun] > synapsis or yolk-division yolk division1852 yolk cleavage1853 yolk segmentation1857 synapsis1895 1853 Philos. Trans. (Royal Soc.) 143 374 The germinal vesicle soon disappears, and when the ova are now examined, the phenomenon of yelk-cleavage may be distinctly perceived in them. 2006 Developmental Biol. 295 251/1 Despite that yolk cleavage and ion uptake seem to be the main osmotic effectors for oocyte hydration, the timing when these processes occur during maturation is not well established. < as lemmas |
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