Prokaryotic Genetics

Prokaryotic Genetics - o Leads to two F+ cells •...

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Prokaryotic Genetics **last material for exam Prokaryotes have no nucleus o Haploid Conjugation-formation of sex tubular structure sending out genetic information o Lederburg and Tatum Took two auxotrophic strains, mixed them, and made prototrophic strain Could grow when mixed because the DNA transferred and recombined Strains became viable o Bernard Davis-Feeding control Moved small molecules but no bacteria o F-Plasmid mediates conjugation Circular, non-chromosomal DNA molecule with encoding genes Creates sex pilus
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Unformatted text preview: o Leads to two F+ cells • Transformation-relies on bacterial to become “competent” for transformation o DNA fragments from environment are taken into the cell and used o DNA stolen from dead bacterium o R-plasmids are naturally occurring vectors that can resist antibiotics • Transduction-bacteriophage infect bacteria o DNA is then recombined with host DNA o Phase secretes DNA DNA is then packaged into phages by donor bacterium Then infect recipient bacterium o...
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This note was uploaded on 05/16/2011 for the course BIOL 202 taught by Professor Kieber-hogan during the Spring '08 term at UNC.

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Prokaryotic Genetics - o Leads to two F+ cells •...

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