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Generative nuclei The two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms.

在被子植物中的生殖细胞(为雄原核译者成两个配子的核。

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基础入门

From this video, you should now know that mitosis is how cells divide in order to grow and repair, or for asexual reproduction.

通过这个视频,你现在应该知道有丝分裂是细胞为了生和修或无性生殖分裂的过程。

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Osmosis-遗传

Early on in meiosis the germ cell makes a copy of all of its chromosomes with each chromosome having sister chromatids at that point.

减数分裂早期,生殖细胞会先的染色体,完毕后,所有的染色体都有了姐妹染色单体。

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