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PCR
PCR

... thousands of different recombinant plasmids. • A complete set of recombinant plasmid clones, each carrying copies of a particular segment from the initial genome, forms a genomic library. – The library can be saved and used as a source of other genes or for gene mapping. ...
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... - If multiple genes are desired, use separate plasmids for selectable markers and genes. - If a single gene is desired, use electroporation. The selectable marker and the gene are in a single plasmid. - Transfection can be transient or stable. - For obtain stable cell line, need a dominant selectab ...
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... attached to other traits being tested (Alzheimer’s disease research, neurological research) so that scientists can easily see if the DNA change has been accepted by the transgenic organism. Gel Electrophoresis - procedure that separates DNA segments according to size; used to solve crimes and for pa ...
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... fracture will usually mend if the bone is set correctly. Almost all human tissue can repair itself to some extent. Much of this repair is due to the activity of stem cells. These cells resemble those of a developing embryo in their ability to reproduce repeatedly, forming exact copies of themselves. ...
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... 1. recombination is important in bacterial populations as a means of increasing genetic diversity 2. recombination is also an important tool for creation of new strains useful in biotechnology B. Plasmids = small, circular DNA molecules that can exist independently of host chromosomes (extrachromoso ...
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... DNA species makes the circular plasmid DNA denser than the chromosomal DNA, the plasmids form a distinct band on centrifugation in a cesium chloride gradient and can be separated easily. They can then be introduced into bacterial cells by transformation. Restriction enzymes: Have two properties usef ...
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... reads the mRNA codons Matches codons to amino acids Prompts tRNA to bring a.a. Attaches a.a. with peptide bonds ...
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... amino acid Order of codons determines order of amino acids which determine the protein that is synthesized tRNA brings in anti-codons to attach to the complementary codon When anti-codons pair with codons, amino acids are attached together in a chain Assembly ends when a “stop” codon is reached and ...
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... Isohelix Stabilisation and Lysis Kits fully stabilises your DNA (taken from buccal swabs and other source material) from enzymatic and microbial activity that occurs naturally after buccal sampling. The kit is designed to store the DNA samples at room temperature and shows no visible loss of DNA sta ...
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... deaths of males since they only have a single X chromosome. Not every cell in an organism’s body has to have an inactivated X chromosome which is how tricolor cats form. In the cells with inactivated X chromosomes, that patch of fur may be black while another with both of its chromosomes activated w ...
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Molecular cloning



Molecular cloning is a set of experimental methods in molecular biology that are used to assemble recombinant DNA molecules and to direct their replication within host organisms. The use of the word cloning refers to the fact that the method involves the replication of one molecule to produce a population of cells with identical DNA molecules. Molecular cloning generally uses DNA sequences from two different organisms: the species that is the source of the DNA to be cloned, and the species that will serve as the living host for replication of the recombinant DNA. Molecular cloning methods are central to many contemporary areas of modern biology and medicine.In a conventional molecular cloning experiment, the DNA to be cloned is obtained from an organism of interest, then treated with enzymes in the test tube to generate smaller DNA fragments. Subsequently, these fragments are then combined with vector DNA to generate recombinant DNA molecules. The recombinant DNA is then introduced into a host organism (typically an easy-to-grow, benign, laboratory strain of E. coli bacteria). This will generate a population of organisms in which recombinant DNA molecules are replicated along with the host DNA. Because they contain foreign DNA fragments, these are transgenic or genetically modified microorganisms (GMO). This process takes advantage of the fact that a single bacterial cell can be induced to take up and replicate a single recombinant DNA molecule. This single cell can then be expanded exponentially to generate a large amount of bacteria, each of which contain copies of the original recombinant molecule. Thus, both the resulting bacterial population, and the recombinant DNA molecule, are commonly referred to as ""clones"". Strictly speaking, recombinant DNA refers to DNA molecules, while molecular cloning refers to the experimental methods used to assemble them.
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