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| 1. |
Nuclear division in mitosis - ??? |
| Answer» Nuclear division is the division of the nucleus occuring in both mitosis and meiosis during cell division. In mitosis nuclear division only occurs once to produce two daughter cells genetically identical to each other. Nuclear division occures twice during meiosis as four haploid gametes are produced; each of which are genetically different from each other. In both processes the nuclear envelope is fragmented and completley broken down into small vesicles during prophase, to allow the chromosomes to segregate. The nuclear envelope then begins to reform during telophase within the daughter cells. This process involves vesicles of nuclear membrane fusing together around the chromosomes, to form the nuclear envelope and nuclear lamina. | |