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Cell Cycle, Mitosis, and Meiosis


Mitosis is the process of cell division, including separation and replication of the chromosomes, which results in two genetically identical daughter cells. In a stricter sense, mitosis is the distribution (separation) of the chromosomes and cell organelles to the two daughter cells. Mitosis is usually divided into six segments: prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis.

Animation of mitosis
Mitosis images in sequence
Mariana Ruiz Villarreal , Ann Seidel (this work is public domain)

Mitosis: Like the cell cycle, mitosis is also a chronological sequence of phases. Beginning with the interphase, which constitutes the majority of the entire cell cycle and is indicated here as only the small white sector, the cycle moves through prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis before starting the cycle again with interphase.

Guide to "Animation of Mitosis": You can navigate the animation with the control buttons (bottom right) or with the mitosis cycle (upper right). The diagram of the cycle in the top right indicates which phase of the cycle is currently being demonstrated. A mouse click on the colored sections of the cycle or the associated label allows for fast navigation to the phase in question.

Graphic: Macroscopic structure of a chromosome

3D Animation: Structure of a chromosome


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