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Cellular and Molecular Biology

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Defining Component of Nucleic Acids

CELLS-KEPWLN

You analyze a sample of nucleic acid to try to determine whether it is DNA or RNA.

Which of the following observations would MOST conclusively identify it?

A

The sample contains deoxyribose but not ribose.

B

The sample has a very small percentage of uracil.

C

The sample contains phosphate.

D

The sample contains a substantial percentage of cytosine.