电镜下裸核有明显核仁，核周围有溶酶体等散落的细胞器。
There is distinct nucleolus the naked nucleus and some dispersed organelle as lysosome around the nucleus.
在椭形胚期，宿存助细胞核内的染色质及核仁消失，有细胞质侵入核内。
At ellipsoidal embryo stage, the chromatin and nucleoli disappear and some cytoplasm enters the nucleus.
虽然人们对于核仁的认识已经有很长的历史了，但是人们对于核仁结构和功能方面的认识仍然有很多不同的意见。
The nucleolus has been studied for a long time but there have been still many arguments about nucleolar structures and function.
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