2005_campbl12

2005_campbl12 - Chapter 12: The Cell Cycle Important Point:...

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Unformatted text preview: Chapter 12: The Cell Cycle Important Point: Chromosome Sorting The goal of cell division typically is to equally partition two more-or-less identical copies of genetic material between two daughter cells Prokaryotes are comparatively simple, with only one chromosome, so have a relatively easy time sorting daughter chromosomes to daughter cells Eukaryotes, with their longer DNA and multiple chromosomes, dont have it nearly so easy Much of the complex dance of Mitosis is a consequence of the need to make sure that each daughter cell ends up with the same number and type of chromosomes as the parent Cell Division Chromosome, Bacterial Chromosomes, Eukaryote Here chromosome and DNA are not 100% synonymous Chromosomes vs. Chromatin Chromosomes Tightly packaged DNA Found only during cell division DNA is not being used for macromolecule synthesis Chromatin Unwound DNA Found throughout Interphase DNA is being used for macromolecule synthesis Chromosomes, Eukaryote Though chromosomes are all about DNA, in fact much this structure consists of protein Form via replication, not by formed chromatids coming together How Long is a Chromatid a Chromatid?...
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This note was uploaded on 06/03/2011 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

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2005_campbl12 - Chapter 12: The Cell Cycle Important Point:...

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