Definition
Telophase is the fourth stage of mitosis, during which the separated sister chromatids reach the opposite poles of the cell, the nuclear envelope re-forms around each set of chromosomes, and the chromosomes begin to de-condense back into chromatin. This stage is followed by cytokinesis, which divides the cytoplasm and completes cell division.
Summary
Telophase is a critical stage in the process of mitosis, where the chromosomes that have been separated during earlier phases begin to de-condense, and the nuclear envelope reforms around each set of chromosomes. This stage is essential for ensuring that each daughter cell receives an identical set of genetic material, which is vital for maintaining the integrity of the organism's genome. Following telophase, cytokinesis occurs, which is the physical division of the cytoplasm, resulting in two distinct daughter cells. Understanding telophase and its role in the cell cycle is crucial for students studying biology, as it lays the foundation for more complex topics such as cancer biology and genetic engineering.
Key Takeaways
Chromosome Behavior
During telophase, chromosomes de-condense and become less visible, allowing for the formation of new nuclei.
highNuclear Envelope Formation
The nuclear envelope reforms around each set of chromosomes, marking the end of mitosis.
highCytokinesis Connection
Telophase is closely linked to cytokinesis, which divides the cytoplasm and completes cell division.
mediumCell Cycle Regulation
Understanding telophase helps in grasping how cell cycles are regulated, which is crucial in cancer research.
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