Genetic diversity through sexual reproduction General growth and repair and reproduction of cells It refers to the cell division which forms four daughter cells each with half the number of chromosomes as the parent cell. It refers to the cell division that forms two daughter cells each with the same number and type of chromosomes as the parent cell. Important Difference Between Mitosis And Meiosis Basis of Comparison Hence, the meiotic cell cycle produces four cells which are genetically different as opposed to the two genetically identical cells which mitosis produces. Moreover, the genetic recombination that takes place during the course of meiosis helps in introducing new gene combinations in a population. Thus, as you know, gametes produce in male and female gonads and comprise of one-half the number of chromosomes as the original cell. In order to understand the difference between mitosis and meiosis, we must learn what they actually mean. Meiosis refers to the process in which gametes (sex cells) generate in organisms that reproduce sexually.
Moreover, the body needs mitosis in order to replace dead cells, damaged cells or cell having shorter life spans. For instance, somatic cells incorporate fat cells, skin cells, blood cells or any body cell which are not sex cells. In addition, through mitosis, the body’s somatic cells replicate. Further, the presence of specific growth factors or other signals indicating the requirement of production of new cells initiates the mitotic cell cycle. After that, the dividing cell will go through a structured sequence of events known as the cell cycle. The genetic material (DNA) in a cell duplicates and divides equally between two cells in mitosis. This results in an extra chromosome (n + 1) in two of the gametes and a missing chromosome (n - 1) in two of the gametes.3.2.1 FAQs about Mitosis And Meiosis Definition of Mitosis If nondisjunction occurs in meiosis I, the homologous pair of chromosomes remain bound. Nondisjunction may occur during meiosis I or meiosis II. \): Nondisjunction in Meiosis: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, resulting in an abnormal chromosome number.
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