Before revision: In the SDSA model, repair of double-stranded breaks occurs without the formation of a double Holliday junction, such that the two processes of homologous recombination are identical until just after D-loop formation.
After revision: In the SDSA model, repair of double-stranded breaks occurs without the formation of a double Holliday junction, so that the two processes of homologous recombination are identical until just after D-loop formation.