Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Investigative Techniques > Genetic Techniques > Nucleic Acid Amplification Techniques > Ligase Chain Reaction Terms and Definitions




Ligase Chain Reaction

Medical Definition: A DNA amplification technique based upon the ligation of OLIGONUCLEOTIDE PROBES. The probes are designed to exactly match two adjacent sequences of a specific target DNA. The chain reaction is repeated in three steps in the presence of excess probe: (1) heat denaturation of double-stranded DNA, (2) annealing of probes to target DNA, and (3) joining of the probes by thermostable DNA ligase. After the reaction is repeated for 20-30 cycles the production of ligated probe is measured.
Previously Indexed: Gene Amplification (1980-2000)

Ligase Chain Reaction Medical Definitions and Terms

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