![]() However, since the actual process involves the division of the nucleus, prophase is technically the first stage of this process. Find, identify, and draw the phases of mitosis in the onion root tip and whitefish blastula. Stages of Mitosis Right before prophase, the cell spends most of its life in the interphase, where preparations are made before the beginning of mitosis ( the DNA is copied ). ![]() After you have received verification from your instructor, draw the cell in Table 1.įigure 5. As you locate each phase, your instructor will verify that you are correct and initial your paper. Find each phase of mitosis on the slide.Locate the meristematic tissue to observe phases of mitosis using high power. Hold the slide of the onion root up to the light and note that there are several longitudinal sections on the slide.While technically not a phase of mitosis, you may use “interphase” for some of the cells, but you should not use “cytokinesis.” The cells go in the appropriate temporal sequence through cell cycle and you are likely to use the same term multiple times. In Figure 5 below, identify the phase of mitosis and write the name of the phase below each diagram.In this exercise, we will consider prometaphase a component of prophase. You may find that some accounts of mitosis further subdivide the process to include prometaphase between prophase and metaphase. Mitosis is commonly divided into four major phases: prophase, metaphase, anaphase, and telophase. ![]() While the process of mitosis is continuous process within the cell cycle (i.e., it doesn’t occur in discrete steps), biologists are classifiers and tend to place things into discrete categories. Meiosis is another form of cell division in eukaryotes that leads to the production of gametes. Which of the following events does not occur during prophase of mitosis The mitotic spindle breaks down. Mitotic cell division is used in asexual reproduction, growth, and repair. Mitotic cell division leads to the production of genetically identical daughter cells from existing parent cells. Mitosis without the co-occurance of cytokinesis leads to the production of multinucleated cells, such as those found naturally in skeletal muscle and cardiac muscle. In eukaryotes, this generally occurs by the process of mitotic cell division, which involves the separate but often coordinated processes of cytokinesis (division of the cytoplasm and organelles) and mitosis (division of the nucleus and associated DNA). \)Īccording to the cell theory of biology, all cells arise from pre-existing cells.
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