Mitosis in Onion Root Tip - Amrita University

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A process by which a parent cell divides into two or more daughter cells is called cell division. Cell division is actually a small part of the cell cycle. The type of cell division in normal eukaryotic cells is called Mitosis. Another type of cell division is also present in reproductive cells of eukaryotes is called meiosis. Cell cycle is mainly divided into two segments: Interphase and M phase. Interphase is a longer period of cell division. During this phase the cell prepares of its next stage. This is a period of diverse activities and these activities prerequisite for the next mitotic phase. Interphase is mainly divides into three phases: G1 phase, S phase and G2 phase. S phase is the period of replication. G1 and G2 are two gap phases during which the cell grows, producing proteins and preparing the cells. These phases also have certain check points and the whole cell cycle is strictly regulated.