chapter_13 - Horizontal gene transfer Chapter 13 Microbial...

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1 1 Chapter 13 Microbial Recombination and Plasmids 2 Horizontal gene transfer transfer of genes from one mature, independent organism (donor) to another (recipient) exogenote DNA that is transferred to recipient endogenote genome of recipient merozyogote recipient cell that is temporarily diploid as result of transfer process 3 Figure 13.4 three mechanisms of gene transfer 4 Bacterial Plasmids small, double-stranded, usually circular DNA molecules are replicons have their own origin of replication can exist as single copies or as multiple copies curing elimination of plasmid can be spontaneous or induced by treatments that inhibit plasmid replication but not host cell reproduction
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2 5 Bacterial plasmids… episomes plasmids that can exist either with or without integrating into chromosome conjugative plasmids have genes for pili can transfer copies of themselves to other bacteria during conjugation 6 7
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This note was uploaded on 01/11/2009 for the course BICS 300 taught by Professor Dr.d.w.smith during the Spring '07 term at University of Dundee.

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chapter_13 - Horizontal gene transfer Chapter 13 Microbial...

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