Before cells can divide, either through mitosis or meiosis, they must go through interphase. In interphase, the contents of the cell double.
What must occur before mitosis?
Before a cell can enter the active phases of mitosis, however, it must go through a period known as interphase, during which it grows and produces the various proteins necessary for division.
What must happen before mitosis or meiosis begins?
Before entering meiosis I, a cell must first go through interphase. This is the same interphase that occurs before mitosis. The cell grows, copies its chromosomes and prepares for division during the G 1start subscript, 1, end subscript phase, S phase, and G 2start subscript, 2, end subscript phase of interphase.
What process occurs as mitosis ends?
Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.
Where does mitosis occur in the body?
Mitosis is an active process that occurs in the bone marrow and skin cells to replace cells that have reached the end of their lives. Mitosis occurs in eukaryotic cells. Although the term mitosis is frequently used to describe the entire process, cell division is not mitosis.