Term Name:	DNA geometric change
Synonyms:
Definition:	The process in which a transformation is induced in the geometry of a DNA double helix, resulting in a change in twist, writhe, or both, but with no change in linking number. Includes the unwinding of double-stranded DNA by helicases.
Ontology:	GO: Biological Process [GO:0032392]    QuickGO    AmiGO