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Question

What do you mean by prophase in mitosis?


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Solution

Mitosis:

  1. Mitosis is a process that occurs in all cells in the body except reproductive cells.
  2. The number of chromosomes in the daughter cells remains the same (i.e., diploid 2n); hence it is called equational division.
  3. A diploid cell that divides by mitosis produces diploid offspring.
  4. The process of mitosis produces two daughter cells.
  5. Prophase, metaphase, anaphase, and telophase are the four stages of mitosis.

Prophase:

  1. The prophase immediately follows the cell cycle's S and G2 phases.
  2. It is the first stage of mitosis.
  3. The genetic material condenses to form compact mitotic chromosomes, which are made up of two chromatids linked at the centromere.
  4. The centrosome, duplicated during interphase, begins to migrate towards the cell's opposite poles.
  5. The nucleolus and nuclear membrane disappear at this stage.


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