Final answer:
Telophase is the phase of mitosis characterized by the reformation of the nuclear envelope and the production of two separate nuclei.
Step-by-step explanation:
Telophase is the final stage of mitosis where the nuclear envelope reforms and two separate nuclei are produced. During telophase, the chromosomes reach opposite poles, the enclosed chromosomes begin to decondense, and nucleosomes appear within the nuclear area. At this stage, mitosis is complete and division of the cytoplasm will follow during cytokinesis.