BIO311cCh16.GeneExpression-Pro-andEukaryotes-Fall2009

BIO311cCh16.GeneExpression-Pro-andEukaryotes-Fall2009 - 16...

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16. Gene Expression in Prokaryotes nd Eukaryotes and Eukaryotes Structure and Replication of Viruses Bacterial Genome and Gene Transfer Prokaryotic Gene Regulation ukaryotic Genome Eukaryotic Genome Eukaryotic Gene Regulation . SATHASIVAN K. SATHASIVAN
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Model Organisms
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Virions Come in Various Shapes
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Relative Sizes of Microorganisms
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The Lytic and Lysogenic Cycles of Bacteriophage
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Figure 13.4 The Lytic Cycle: A Strategy for Viral Reproduction
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lant Viruses Plant Viruses Transmission: ertical: Generation to generation Vertical: Generation to generation Horizontal: Within same generation
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Viral infection of plants
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Classes of Animal Viruses, Grouped by Type of Nucleic Acid
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The Reproductive Cycle of the Influenza Virus
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The Reproductive Cycle of HIV
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Measles
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Smallpox
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HIV infection
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BACTERIAL GENOME & GENETICS Bacterial chromosome and plasmids enetic changes in Genetic changes in bacteria Gene organization and regulation
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Plasmids Extra chromosomal, small nd circular DNA and circular DNA R- Plasmid Antibiotic resistance F-Plasmid Fertility pilus for conjugation actors C-Factors Genes for toxic proteins
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ene Transfer in Bacteria Gene Transfer in Bacteria Transformation: uptake of DNA from surroundings Transduction: Phage mediated DNA transfer Conjugation: Bacterial mating between F+ and F- strains Transposition: Genes moving from plasmid to chromosome or vice versa
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Gene Transfer by Transformation and Transduction
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Gene Transfer by Conjugation
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Transposable Elements and Transposons
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Two Ways to Regulate a Metabolic Pathway
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The E. coli lac operon. Sequences that control the lacY NA Regulatory gene lacI Promoter Operator expression of the operon lacZ lac operon lacA DNA Binds Lac repressor Binds RNA polymerase Transcription initiation site Transcription termination site Lac repressor β -Galactosidase Permease Transacetylase Fig. 16-2, p. 331
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. Lactose absent from medium a actose abse t o ed u lacA DNA lacI Promoter Operator ranscription lac operon lacZ lacY mRNA Lac RNA polymerase annot bind Transcription blocked When lactose is absent from the medium, the active Lac repressor binds to the operator of the lac operon, repressor (active) cannot bind to promoter blocking transcription.
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This note was uploaded on 04/26/2010 for the course MUSC 1300 taught by Professor Malone during the Spring '10 term at University of Texas.

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BIO311cCh16.GeneExpression-Pro-andEukaryotes-Fall2009 - 16...

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