n.细胞分裂后期
During mitosis, sister chromatids remain joined by their centromere until anaphase. 在有丝分裂期间，姐妹染色单体在分裂后期之前都是通过着丝点连接的。
At anaphase of mitosis, the organelles in microspore cytoplasm are concentrated in the future vegetative cell pole. 有丝分裂后期，细胞器集中于未来的营养细胞极。
