Study Online and Download KIPS 9th Class Biology Notes Unit 5: Cell Cycle. The most basic characteristic of life is reproduction. Reproduction occurs at different levels of organization.

Study Online and Download KIPS 9th Class Biology Notes Unit 5: Cell Cycle. The most basic characteristic of life is reproduction. Reproduction occurs at different levels of
organization. Parts of cell such as chromosomes produce new chromosomes, cells produce new
cells and individuals produce offspring like themselves. If we recall from chapter 1, we should
remember Rudolf Virchow. He proposed an important biological principle i.e. all cells come from
cells. This principle tells us that the continuation of life, including all aspects of reproduction, is
based on the reproduction of cells. We commonly refer cellular reproduction as cell division and it
is a part of the whole life of a cell i.e. cell cycle.
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