Copyright © 2009 Pearson Education, Inc. Art and Photos in PowerPoint ® Concepts of Genetics Ninth Edition Klug, Cummings, Spencer, Palladino Chapter 12 DNA Organization in Chromosomes Copyright © 2009 Pearson Education, Inc.
12.1Viral and Bacterial Chromosomes Are Relatively Simple DNA Molecules
Copyright © 2009 Pearson Education, Inc. Figure 12.1
Copyright © 2009 Pearson Education, Inc. Table 12.1
Copyright © 2009 Pearson Education, Inc. Figure 12.2
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Figure 12.3
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12.2 Supercoiling Facilitates Compaction of the DNA of Viral and Bacterial Chromosomes
Copyright © 2009 Pearson Education, Inc. Figure 12.4
Copyright © 2009 Pearson Education, Inc. Figure 12.4a
Copyright © 2009 Pearson Education, Inc. Figure 12.4b
Copyright © 2009 Pearson Education, Inc. Figure 12.4c
Copyright © 2009 Pearson Education, Inc. Figure 12.4d
Copyright © 2009 Pearson Education, Inc. 12.4DNA Is Organized into Chromatin in Eukaryotes Chromatin Structure and Nucleosomes
Copyright © 2009 Pearson Education, Inc. DNA Fun Fact Length of DNA in human cell ~ 2 meters No. of cells in human body ~10 14 So, total length of DNA in human body ~ 2 x meters = 2 x km Distance from Earth to Sun ~ 1.5 x 10 8 km This means that you have enough DNA in your body to stretch back and forth between the Earth and Sun 1000 times!
Copyright © 2009 Pearson Education, Inc. Table 12.2
Copyright © 2009 Pearson Education, Inc. Figure 12.8
Copyright © 2009 Pearson Education, Inc. Figure 12.8a
Copyright © 2009 Pearson Education, Inc. Figure 12.8b
Copyright © 2009 Pearson Education, Inc. ~200 bp 147 bp digest linker DNA
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Figure 12.9
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12.4DNA Is Organized into Chromatin in Eukaryotes High Resolution Studies of the Nucleosome Core
Copyright © 2009 Pearson Education, Inc. Figure 12.10
Copyright © 2009 Pearson Education, Inc. 12.4DNA Is Organized into Chromatin in Eukaryotes Heterochromatin
Copyright © 2009 Pearson Education, Inc Chromosome Banding Differentiates Regions along the Mitotic Chromosome
Copyright © 2009 Pearson Education, Inc. Figure 12.11
Copyright © 2009 Pearson Education, Inc. Figure 12.12
Copyright © 2009 Pearson Education, Inc. Figure 12.13
Copyright © 2009 Pearson Education, Inc Eukaryotic Chromosomes Demonstrate Complex Sequence Organization Characterized by Repetitive DNA
Copyright © 2009 Pearson Education, Inc. Figure 12.14
Copyright © 2009 Pearson Education, Inc Eukaryotic Chromosomes Demonstrate Complex Sequence Organization Characterized by Repetitive DNA Satellite DNA
Copyright © 2009 Pearson Education, Inc. Figure 12.15
Copyright © 2009 Pearson Education, Inc. Figure 12.16
Copyright © 2009 Pearson Education, Inc Eukaryotic Chromosomes Demonstrate Complex Sequence Organization Characterized by Repetitive DNA Centromeric DNA Sequences
Copyright © 2009 Pearson Education, Inc. Centromeric DNA Sequences “point” versus “regional” centromeres
Copyright © 2009 Pearson Education, Inc. Figure 12.17
Copyright © 2009 Pearson Education, Inc Eukaryotic Chromosomes Demonstrate Complex Sequence Organization Characterized by Repetitive DNA Telomeric DNA Sequences Middle Repetitive Sequences: VNTRs and STRs Repetitive Transposed Sequences: SINEs and LINEs Middle Repetitive Multiple-Copy Genes
Copyright © 2009 Pearson Education, Inc The Vast Majority of a Eukaryotic Genome Does Not Encode Functional Genes “C- value paradox”