Chapter9 - 1/24/11 Genes make proteins Chapter 9 Cell...

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1/24/11 1 Chapter 9 Cell Division Genes make proteins Genome Collection of genes that give instructions to make an organism Every cell has a complete copy of the genome Reasons for Cell Division Growth Development Healing Overview of Cell Division Forms of DNA Chromatin Loose, available for information retrieval Condensed = Chromosomes Ready for cell division; visible to light microscope
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1/24/11 2 Chromosome Organization Each organism has characteristic number Humans = 46 They come in pairs: maternal (from Homologous pairs The Cell Cycle Alternation of growth and division over time “G1” and “G2” phases are growth “S” phase is DNA synthesis (replication) “M” phase includes mitosis Interphase Term referring to all phases in between cell divisions G1 + S + G2
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1/24/11 3 Cell division mitosis + cytokinesis End result: two cells, each with complete genome copy Steps of mitosis Prophase Chromosomes Present Metaphase Chromosomes line up in Middle
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This note was uploaded on 04/15/2011 for the course BIOL 101l taught by Professor Huddleston,m during the Fall '08 term at University of Hawaii, Manoa.

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Chapter9 - 1/24/11 Genes make proteins Chapter 9 Cell...

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