Mitosis is an extremely important process which is carried out by all Eukaryotic cells. It is important in the growth and repair of organisms.
Think of your cells as mini photocopying machines. During mitosis, a cell (mother cell) goes through the process of nuclear division and cytoplasm division. The result is two "daughter" cells. This process is known as mitosis and it ha four stages or phases.
Interphase- An Important Stage in Cell Cycle BEFORE Mitosis.
Before cells divide, they are in the longest stage of the cell cycle, interphase. During interphase, the cell is growing. In addition,
it is making a copy of its DNA, and the centrosome makes a copy of itself.
Prophase is the first and largest stage of mitosis.
During prophase, the cromosmes start to condense . Thee chromosomes are made up of of two "sister" chromatids that are joined by a centromere. The mitotic spindles also starts to form from the centrosomes. Prometaphase is the next stage.
During prometaphase, the nuclear envelop that surrounds the nucleus breaks apart. This allows the chromosomes to be released. Also, the mitotic spindle grows and the microtubules from the centrosome start to attach to the and organize the chromosomes.
Metaphase continues this organization. At this stage, some of the microtubules from the mitotic spindle have attached themselves to the kinetochores which are on each side of the centromere that attaches the sister chromatids. The microtubules are sort of like the "rope" that will eventually be used to pull the sister chromatids apart to help form the two, new daughter cells.
Anaphase begins the process of pulling apart the sister chromatids. Now, the chromosomes of each pair are pulled apart by the microtubules or "ropes". The microtubules pulls each of them towards the opposite sides of the cell. Other microtubules stretch out the cell making it longer and shaped like a watermelon.
Telophase is the phase when the cells start to become two separate cells. The mitotic spindle starts to break down. Each new cell develops a nucleolus . The nuclear envelop also forms around the nucleus in each new cell. Each cell also has
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