Also, it presents a system that allows performing the isolation of the genomic library of bacterium “vibrio fischeri” clone and preparation and study of the plasmid subclone in a short period of time.

Isolation of plasmid DNA involves: growth of bacteria and amplification of plasmid, harvesting and lysis of bacteria, and purification of plasmid DNA.

DNA isolation from a particular organism requires celll lysis. Lysozyme enzyme is used to allow access to peptidoglycan and degrade it so that isolation of DNA can be facilitated. The most important reagents used in DNA isolation are: phenol and chloroform tha

The digested vector PGEM plasmid will be used to create recombinant plasmids by ligating to the genomic SAL I restriction fragments.

Restriction digestion is used in making genomic libraries. In addition, identification of differences in restriction enzyme. Cleavage patterns between individuals has become an important tool for the diagnosis of many genetic diseases. Restriction enzymes are site specific endonucleases, thatis, they cut DNA molecules only at sites where a specific sequence of bases occurs that the enzyme cuts large DNA molecule into a number of fragments with sizes defined by the distribution of the particular recognition sequence.

DNA can be digested with several restriction enzymes that cut at different sites and the size of the resulting fragments can be determined by agarose gel electrophoresis.

By comparing the sizes of fragments produced by digestion with single enzyme and combinations of enzymes. The cleavage sites can be mapped with respect to each other and a physical map of the initial piece of DNA can be deduced.

Since SAL I enzyme recognizes 6 base pair sequence of DNA, a specific sequence will appear at an aver

Some topics in this essay:
DNA DNA, Lab Introduction, DNA RNA, SAL SAL, Location DNA, T4 DNA, DNA PGEM, Recombinant DNA, recombinant dna, dna isolation, restriction enzyme, nucleic acid, agarose gel electrophoresis, agarose gel, bacterium “vibrio, dna fragments, gel electrophoresis, “vibrio fischeri”, restriction digestion, recombinant dna technology, bacterium “vibrio fischeri”,