When Double-Stranded DNA Is Heated at Neutral PH, Which Change

Multiple Choice

When double-stranded DNA is heated at neutral pH, which change does NOT occur?

A) The absorption of ultraviolet (260 nm) light increases.
B) The covalent N-glycosidic bond between the base and the pentose breaks.
C) The helical structure unwinds.
D) The hydrogen bonds between A and T break.
E) The viscosity of the solution decreases.