A scientist wants to perform a test that will indicate whether a nucleic acid sample is composed of either RNA or DNA.Testing for the presence of which of the following is most appropriate in this situation?
A)phosphate
B)nitrogen
C)guanine
D)uracil
E)thymine

Question

Quizplus · Accepted Answer

Uracil is present in RNA but not in DNA, making it the best choice for differentiating between the two nucleic acids. Phosphate and nitrogen are present in both RNA and DNA, while guanine and thymine are present in both but in different ratios.

A Scientist Wants to Perform a Test That Will Indicate