Polymerase Chain Reaction-Oligonucleotide Ligation Assay (PCR-OLA) | Genetics

Polymerase Chain Reaction-Oligonucleotide Ligation Assay (PCR-OLA) is a method to diagnose hereditary diseases caused by mutation not affecting restriction endonuclease sites. This method combines Polymer­ase Chain Reaction with the Ligation Assay. PCR-OLA distinguishes between the ligation and the absence of ligation of two oligonucleotides. A single nucleotide mismatch (at the site of hybridized oligonucleotides) prevents ligation and hence we can [...]