Which of the following is a phase of mitosis?
Correct answer: B. Prophase
- A. S phase
- B. Prophase
- C. Interphase
- D. G0
Explanation
Prophase is the first stage of mitosis, where chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the mitotic spindle begins to form. Additionally, centrosomes move to opposite poles of the cell, and spindle fibers start to extend from them towards the chromosomes. Prophase marks the beginning of the process of cell division and is characterized by significant changes in the organization of cellular structures in preparation for chromosome segregation.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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