AP BIOLOGY

Detailed explanation-1: -Hence, in the Telophase phase of mitosis nuclear membrane reforms.

Detailed explanation-2: -Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.

Detailed explanation-3: -In species with an open mitosis, reformation of the nuclear envelope starts during anaphase and lasts into G1 phase of the cell cycle. Nuclear assembly is regulated both by the reversal of the mitotic phosphorylation of many nuclear envelope proteins and by the local action of Ran on chromosomes.

Detailed explanation-4: -In order to allow the new cells to begin producing the necessary proteins and to protect the DNA, a nucleus must reform in each cell.

Detailed explanation-5: -During telophase, the nuclear envelope reforms on the surface of the separated sister chromatids, which typically cluster in a dense mass near the spindle poles (Fig. 44.18).