Mitosis is the process of cell division and consists of the following 5 phases:
- Prophase
- Prometaphase
- Metaphase
- Anaphase
- Telophase
Interphase and cytokinesis may sometimes be included in this process, although the former precedes mitosis and the latter succeeds it. A cell spends most of its life cycle in interphase, but it is technically not a part of mitosis.
Among the phases of mitosis, prophase is the longest and anaphase is the shortest. During interphase, the chromosomes divide and exist in the form of chromatin fibers. During prophase, chromatin condenses and chromosomes become visible. The centrioles moves to the opposite ends and the mitotic spindles are formed. During prometaphase, dissolution of the nuclear membrane takes place and chromosomes are pulled in opposite directions by microtubules. During metaphase, the chromosomes line up along an imaginary line known as the metaphase plate. In anaphase, chromosomes move at the opposite ends of the cell and in telophase, a new membrane is formed around the daughter nuclei and the cell is ready for partitioning.
Hope this helps.
No comments:
Post a Comment