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Published byfarzaneh poloyan Modified over 7 years ago
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Your text here In The Name Of God
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Authors: Farzaneh poloyan Mutation in microorganisms
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contents Mutations Recombinant bacteria plasmid
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mutation
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Max-Delbruck
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Point mutation Nonsense mutation Missense mutation Silent mutation
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Nonsense mutation
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Missense mutation
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Silent mutation
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Max delbruck experiment
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Mutations in bacteria can cause five types of phenotypic changes Auxotroph prototroph Fgfhfghlosing or gaining the power of using other nutrients
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Recombinant bacteria
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1.Transformation 2.Transduction 3.conjugation
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transformation Some mammals
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Griffith experiment
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Avery experiment
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And…
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What conditions are necessary for transformation action? 1.The size of the DNA fragment 2.Concentration DNA 3.Cell competence
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And…
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transformation
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transduction Generalized transduction Specialized transduction
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Generalized transduction
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Specialized transduction
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plasmid
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Plasmid replication
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Plasmid
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Bacterial Plasmid
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Yeast Plasmid 1.Yeast integrating plasmid 2.Yeast replicating plasmid
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Ti Plasmid
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Type of plasmids by their ability to transfer to other bacteria 1.Conjugative plasmids 2.Non-conjugative plasmids
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Types of plasmids by their function 1.F ertility plasmids(F plasmid) 2.Resistance plasmids (R plasmid) 3.Col plasmids 4.Degradative plasmids 5.Virulence plasmids
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conjugation
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Thank you for your attention
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