15. All multicellular living organisms grow by a process called cell division. It is of two types - mitosis and meiosis. Mitotic division leads to the formation of two daughter cells with equal number of chromosomes as the parent cells. It occurs during growth, repair and regeneration of cells. On the contrary, meiotic division leads to the formation of four cells with half the chromosome number as that of the parent cell. This type of
division occurs during sexual reproduction.
(a) How is the growth of living organisms different from that of the non-living organisms?
(b) Write alternative names used for mitosis and meiosis.
(c) What role does meiosis play in sexual reproduction?
(d) What is cell division?
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