Generative nuclei The two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms.
在被花粉管中的生殖细胞(为雄原核译者注)分裂配的核。
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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复或无性殖而分裂的过程。
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,殖细胞会复制原先的染色体,复制完毕后,所有的染色体都有姐妹染色单体。
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