lecture_8__05 - The mitotic cell cycle: The cycle of...

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The mitotic cell cycle : The cycle of cellular reproduction involves duplication of all of the cell components and then division of this double-sized cell into two separate cells. The division segment of the eukaryotic cell cycle includes two distinct parts: mitosis (division of the nucleus) and cytokinesis (division of the cytoplasm) 1st cell cycle 2nd cell cycle Duplication of the chromosomes occurs specifically in S phase Duplication of the non-chromosomal cellular components occurs during Gap1 and Gap2 (G1 and G2). Cells enter and exit the cell cycle from G1. DNA content 2n 4n G1 S G2 M Fig. 12.4
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Fig. 12.14 Fig. 12.12 Regulation of the cell cycle in eukaryotes occurs through Cdk/cyclin fluctuation:
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The phases of mitosis: Fig. 12.5 interphase (G2) prophase prometaphase metaphase anaphase telophase
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QuickTime and a Photo - JPEG decompressor are needed to see this picture. Fig. 12.5, cont.
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After replication of a chromosome, the 2 copies (sister chromatids) remain attached together Fig. 12.3
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This document was uploaded on 09/06/2009.

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lecture_8__05 - The mitotic cell cycle: The cycle of...

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