Title: Observation of Mitosis in Garlic Root Tip
Introduction
Mitosis and meiosis are the two types of nuclear cell division in animals and plants. Cell division results in the formation of new cells with the required genetic information. This involves the duplication of the chromosomes which contain the genetic information prior to the division of the cell. Each duplicated chromosome is made up of two sister chromatids which are separated during cells division, allowing each new daughter cell to have a copy of the genetic information.
Mitosis and meiosis vary slightly in the process of the division, the tissues in which they occur and type of cells it produced. In this experiment, the phases of mitosis will be studied in detailed using the root tip of the garlic, Allium sativum. The root tip of Allium sativum is used in this study because it contained the root meristems. Root meristems are undifferentiated tissues that divide perpetually by mitosis under suitable conditions (Campbell et al., 2015). Hence, a large number of cells in the meristems are actively dividing so the various stages of mitosis could be observed easily (Mitosis in Onion Root Tip Cells, n.d.).
In Part A of this experiment, the slide of the garlic root tip was prepared and observed under the microscope to identify the meristems of the garlic
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This is because anaphase is the shortest phase of mitosis and is less frequently captured in images. Telophase is the last phase of mitosis and it marks the completion of mitosis (Campbell et al., 2015). Cells at this phase were seen with the two nuclei of the daughter cells. In the image provided, the formation of the cell plate was slightly visible, forming a line between the two nuclei. Chromosomes are not visible in the nuclei of the two daughter cells as the chromosomes uncoiled and could not be seen anymore ("The cell cycle, mitosis and meiosis",