In June, the spermatocyte was in the first meiotic division. In July, the testis entered spermiogenesis.
在6月的精巢中,初级精母细胞开始进行成熟分裂,形成次级精母细胞。
参考来源 - 山溪鲵精巢的显微与超微结构研究·2,447,543篇论文数据,部分数据来源于NoteExpress
当异常半球中的神经元在成熟之前经历过多的细胞分裂时,就会发生这种罕见的疾病,即大脑一侧长得比另一侧大得多。
The rare disorder, in which one side of the brain grows substantially larger than the other, occurs when neurons in the abnormal hemisphere undergo too many cell divisions before they mature.
结果表明海狸鼠卵母细胞与其它啮齿动物的卵母细胞一样,能够在体外培养成熟,完成第一次减数分裂,排出第一极体。
The results indicated that nutria oocytes, like other rodent oocytes, can be matured in vitro, complete first meiotic division and discharge first polar body.
单瓣紫花木槿的小孢子母细胞经过减数分裂形成四面体状的四分体,成熟花粉是二细胞型花粉,圆球型,表面有刺毛。
The results showed that the type of microsporic tetrads of the simple flower is belong to tetrahedral type and the mature pollen is two-celled with bristles on the surface.
A capability for asymmetric division and the production of cells that become differentiating more mature cells, those are properties of stem cells.
能够完成不对称分裂,以及产生细胞,并分化成为一些更成熟的细胞,这些是干细胞的性质
The same thing with these cells here, as these cells undergo continual divisions, they're changing in ways that make them mature, that make them more like the mature cells of the nervous system, for example, if that's where they end up being but they're losing potential as they go through that differentiation process.
细胞也是这样,在连续分裂的过程中,它们愈发成熟,比如说,变得越来越像,神经系统细胞,如果它们最终将构成神经系统的话,那它们在分化的过程中,就失去了许多潜能
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