BIOL 1010 Lecture Notes - Kinetochore, Cell Membrane, Metaphase

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29 Oct 2012
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To divide or not divide, that is the question . The role of cell division- reproduction and growth (cell renewal and repair) Interphase (i=g1+s+g2)- important steps for dna duplication and initiation of mitosis: mitosis (p+pm+m+a+t) separation of two daughter cells with equal amount of genetic material (chromosomes) The timing and rate of cell division differ between different organisms and also between different cells of an organism: compare skin cells with muscle or nerve cells. What is controlling the rate of cell division, how cells know that it is time to divide. Experimental evidences suggested that the cell cycle is driven by specific chemical signals present in the cytoplasm. Most of the experiments were conducted with cell cultures. Many types of animal and plant cells can be removed from an organism and cultured in an artificial environment. Cultured mammalian cells can be induced to fuse, forming a single cell with two nuclei.

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