. "\"The process in which interchain hydrogen bonds between two strands of DNA are broken or 'melted', generating a region of unpaired single strands.\" [GOC:isa_complete, GOC:mah]" . . "DNA duplex unwinding" . "DNA unwinding" . "duplex DNA melting" . "Note that this term refers to a geometric change in DNA conformation, and should not be confused with 'DNA topological change ; GO:0006265'." . .