DIDEOXY DNA SEQUENCING Graphics Version: Text Version: Index to Other presentations Please send comments to khughes@utk.edu |
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| Slide 1 - Negotiating the presentation Slide 2 -Dideoxy nucleoside triphosphates Slide 3 - Nested DNA fragments Slide 4 - Primer binding Slide 5 - DNA polymerase adds nucleotides Slide 6 - The first DNA copy is extended Slide 7 - Termination of fragment with a dideoxy nucleotide<-Termination of the first strand by incorporation of a dideoxy nucleoside triphosphate> Slide 8 - Release of the first DNA copy Slide 9 - A second strand is copied and terminated Slide 10 - A second strand is released Slide 11 - A third strand is copied Slide 12 - A third strand is released Slide 13 - The three copied strands are illustrated Slide 14 - DNA mixtures are loaded on gels
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Slide 15 - Title slide for DNA Sequencing Facility Slide 16 - Glass plates used for DNA sequencing gels Slide 17 - The top plate is lowered on the bottom plate Slide 18 - The plates are taped together Slide 19 - Polyacrylamide is poured between the plates Slide 20 - Plates are placed in the automated sequencer and buffer tanks are installed Slide 21 - DNA sequencing reactions are carried out and prepared for loading on the gel Slide 22 - - DNA samples are loaded in wells in the gel Slide 24- Fluorescent bands on a gel after electrophoresis Slide 25 - Printout of laser scan of gel Slide 26 - End of presentation |
DNA image by Paul Thiessen (http:ludwig.scs.uiuc.edu/~paul/DNA.html)