由外向内依次是核膜 染色质 核仁 核膜上有核孔.
细胞核是遗传信息库,是细胞遗传和代谢的控制中心.是因为染色质含有DNA,DNA携带遗传信息.也就是各种不同的基因.DNA通过RNA指导蛋白质的合成,控制代谢.
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