The base content of a sample of nucleic acid is as follows: A = 31%, G = 31%, T = 19%, C = 19%. What conclusion should be drawn from this information?
A) This nucleic acid is double-stranded DNA.
B) The strands in this molecule are parallel rather than antiparallel.
C) The purine/pyrimidine ratio in this molecule fits Chargaff's data.
D) This nucleic acid is made of RNA.
E) This nucleic acid is single-stranded DNA.
Answer: E
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