Mitotic Division

Mitotic Division - Mitotic Division I Chromosome Structure...

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Mitotic Division I. Chromosome Structure What is chromatin ? -DNA and protein made up of nucleosomes How do histones and DNA associate in nucleosomes ? -2 wrap around 8 histones (link a DNA in-between) II. Cell Cycle What roles do the following play in the cell cycle: G 1 phase, S phase, G 2 phase, mitosis and cytokinesis ? What is interphase ? Interphase (not part of mitosis but part of cell cycle): G 1 Phase(First Gap Phase) – cell grows and prepares for S Phase S Phase (Synthesis Phase) – DNA and chromosomes protein synthesis; chromosomes duplication G 2 Phase (Second Gap Phase) – protein synthesis increases; preparation for cell division Mitosis (mitosis/cytokinesis) Cytokinesis – cytoplasm divides and 2 daughter cells III. Mitotic Cell Division A. Mitosis What is accomplished when a cell undergoes mitosis? Is the term “mitosis” simply a synonym for cell division? *Specific example : Follow a cell that has 5 chromosomes through the stages of mitosis below Mitosis: Nuclear division; 2 nucleus; identical to parent nucleus formed -Preserves chromosome number in eukaryotic cell division
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This note was uploaded on 02/28/2009 for the course BIOLOGY 101 taught by Professor Martin during the Fall '08 term at Rutgers.

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Mitotic Division - Mitotic Division I Chromosome Structure...

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