The cell maintains at G0 when growth inhibitory factors are entity such as TGF-β. But if they are not enough concentration in the environment, cell remains G0 phase. Mitogenic growth factors trigger the cells for active growth and cell division if they are presence sufficient concentration in the cell environment. External signals have an effect on cell to decide entering the cell cycle process. Mitosis represents the cell division that has 5 subphases prophase, metaphase, anaphase, telophase, and cytokinesis where cytoplasmic division occurs. At G0 phase cells do not have any division process, cells only maintain their living process without growth. On the other hand, there is G0 phase called quiescent state.
Interphase has 3 subphases that are G1, S, and G2. Interphase refers to ‘’getting ready to divide’’. Cell cycle has 2 subgroups: interphase and mitosis. The whole process then repeats.The dividing life of a cell is called cell cycle that includes growth, doubling genetic material and dividing into new cells. Once this happens, they then form into two daughter cells. This is also where the nucleolus reappears inside each of the nuclear membranes.Ĭytokinesis This is where the cell membrane pinches together and divides the cell’s cytoplasm and organelles. When this happens, spindle fibres will disappear and a nuclear membrane will form around each of the separated set of chromosomes. Telophase In this phase, the cells begin to separate. Each sister chromatid head to opposite poles of the cell.
When this happens, the X shaped chromosomes split in two, becoming sister chromatids.
Metaphase In this phase, the X shaped chromosomes will align at the equator of the cell.Īnaphase In this phase, the X shaped chromosomes will be pulled apart by the spindle fibres. Late prophase In this phase, after the spindle fibres are formed, the spindle fibres will attach to centromeres of chromosomes. As this occurs, the nucleolus will disappear and the spindle fibres start to be formed. While this occurs, the DNA molecule unwinds using the help of an enzyme, new bases pair with ones on the original DNA, and two new identical DNA molecules are created.Įarly Prophase In this phase, the replicated chromosomes will coil into an X shape. As it grows in size, it will transition into late interphase.
Interphase: This is where cell performs normal functions and grows.
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