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

question 5

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.

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