CHAPTER 6 The Structures of DNA and RNA.ppt

e Each of You to My Molecular Biology Class
Molecular Biology of the Gene, 5/E --- Watson et al. (2004)
Part I: Chemistry and ics
Part II: Maintenance of the Genome
Part III: Expression of the Genome
Part IV: Regulation
Part V: Methods
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Part II: Maintenance of the Genome
Dedicated to the structure of DNA and the processes that propagate, maintain and alter it from one cell generation to the next
Maintenance of the Genome
Ch 6: The structures of DNA and RNA
Ch 7: Chromosomes, chromatins and the nucleosome
Ch 8: The replication of DNA
Ch 9: The mutability and repair of DNA
Ch 10: Homologous bination at the molecular level
Ch 11: Site-specific bination and transposition of DNA
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CHAPTER 6
The Structures of DNA and RNA
How do the structures of DNA and RNA account for their functions?
OUTLINE
Structure
Topology
Structure
DNA STRUCTURE
DNA STRUCTURE (1)
DNA posed of polynucleotide chains
Structure: twisting around each other in the form of a double helix.
Schematic model
Space-filling model
Nucleoside & Nucleotide, the fundamental building block of DNA
glycosidic bond
phosphoester bond