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4_2_08 - Lecture 2 CELL STRUCTURE DNA AND CHROMOSOMES...

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Lecture 2 CELL STRUCTURE DNA AND CHROMOSOMES
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OUTLINE Recap of Cancer How we look at cells Overview of cell structure Evolution of a eukaryotic cell Organization of DNA How we look at DNA
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Changes in Cells that Cause Cancer Fig. 23-1 Lodish et al., 2004
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Normal Processes that Regulate Cell Growth and Proliferation Fig. 23-8. Lodish et al., 2004
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Schematic of a Eukaryotic Cell Fig. 1-24
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How Can We Look at Cells?
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Different Types of Microscopy Large cellular structures are visible with a light microscope Dynamic processes can be studied in living cells using fluorescence microscopy with Green Fluorescent Protein (GFP) Membranes and internal cell structures can be viewed with an electron microscope
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Evolution of Eukaryotic Cells Fig. 1-19 Observation: mitochondria have two membranes Hypothesis: Mitochondria evolved from engulfed bacteria
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If mitochondria evolved from an ancient prokaryote: 1) Which of the two mitochondrial membranes would
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