Essay On Cell Division
Chromosomes aren’t easily identifiable in the cell’s nucleus and the cell might or might not contain a pair of centrioles or microtubules in plants. This is the preparatory phase of cell division. After interphase, chromatin in the nucleus starts to contract in the phase known as prophase. Centrioles start moving to polar ends of the cell and fibrous extensions form from the centromeres, some of which will traverse the cell and will constitute the mitotic …show more content…
This forms the basis for the kinetochores. Microtubules begin to attach at the kinetochores and the gene’s chromosomes begin traveling to the cell’s axis. Many attribute this phase as just the beginnings and end of the phases of prophase or metaphase. Once prometaphase is complete, and really starting during the conclusion of it, metaphase begins with the spindle fibers aligning the chromosomes around the axis of the cell’s nucleus, in an area commonly referred to as the metaphase plate. This helps to ensure that in anaphase each new cell will have a single copy of each individual chromosome.
The next phase of mitosis, anaphase, starts when the centromeres disperse and ends with the pulling of centromeres, now called chromosomes, to opposite ends of the spindle, ensuring that each daughter cell gets an identical set of chromosomes. During the final stage, telophase, the chromosomes will split apart through cleavage and a cellular nuclear covering forms to protect the new haploid cells. This is when the actual cytokinesis is completed and the new daughter cells are separated.
Mitosis Diagram 1.