Double displacement loops (double d-loops) are templates for oligonucleotide-directed mutagenesis and gene repair.

Abstract excerpt

Appreciable levels of gene repair result from the hybridization of two oligonucleotides at a specific site in a mutated gene and subsequent correction by a form of oligonucleotide-directed mutagenesis known as gene repair. The incorporation of the two oligonucleotides into superhelical plasmid DNA leads to the formation of double d-loops, structures shown to be templates for the repair of both frameshift and...

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