Phases of mitosis

 Phases of mitosis 

Q: What are the main phases of mitosis?


A: The main phases of mitosis are prophase, metaphase, anaphase, and telophase.


Q: Describe the events that occur during prophase.


A: In prophase, chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form.


Q: What happens in metaphase of mitosis?


A: During metaphase, chromosomes align at the cell's equator (metaphase plate), and spindle fibers attach to the centromeres.


Q: Explain the events of anaphase in mitosis.


A: Anaphase involves the separation of sister chromatids, which are pulled towards opposite poles of the cell by the spindle fibers.


Q: What occurs during telophase of mitosis?


A: In telophase, chromosomes decondense back into chromatin, the nuclear envelope reforms around each set of chromosomes, and the spindle fibers disassemble.


Q: How does cytokinesis differ from mitosis?


A: Mitosis is the division of the cell's nucleus, while cytokinesis is the division of the cell's cytoplasm and organelles.


Q: What is the role of the spindle fibers in mitosis?


A: Spindle fibers help separate chromosomes during mitosis by attaching to the centromeres and pulling them towards opposite poles of the cell.


Q: What ensures the accurate separation of chromosomes during mitosis?


A: The attachment of spindle fibers to the centromeres and the proper functioning of the mitotic spindle checkpoint ensure accurate chromosome separation.


Q: Why is mitosis essential for multicellular organisms?


A: Mitosis is essential for growth, development, tissue repair, and maintenance of a constant number of chromosomes in somatic cells of multicellular organisms.


Q: How does mitosis contribute to genetic diversity?


A: Mitosis preserves the genetic makeup of a parent cell, maintaining identical copies of chromosomes in daughter cells. Genetic diversity primarily arises during meiosis.

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