Of the Three Key Building Blocks of DNA,which Type(s)of Building

question 14

Multiple Choice

Of the three key building blocks of DNA,which type(s) of building block is/are negatively charged and oriented on the outside of the double helical structure?

• A)phosphate
• B)deoxyribose
• C)nitrogenous bases
• D)both phosphate and nitrogenous bases
• E)All of the answer options are correct.

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