Animal cells are cultured in petri dishes with a nutrient medium containing radioactive adenine and uracil. Which molecules produced by the cells would you anticipate to be radioactively labeled?

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Correct Answer:D. Adenine and DNA, RNA, and ATP; uracil in RNA
This is an easy question testing your knowledge of nucleic acids and simple biological molecules. Adenine is one of the four nucleotide bases found in DNA and RNA, as well as in the adenosine triphosphate (ATP) molecules found in all cells. Uracil is one of the four nucleotide bases found mostly in RNA.
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