Normally DNA exists inside of cells at physiological salt concentration (approximately 140 mM KCl, 10 mM NaCl, 1 mM MgCl2 and some minor ions). 

Q1: Predict what will happen if you place DNA into distilled water (no dissolved salts).  

Q2: Why is double stranded DNA better for storing information than either single-stranded RNA or DNA?

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