Question

dna and rna structure
quiz complete
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which structural characteristic is seen in rna but not in dna?
double strands
a single strand
chains of nucleotides
a helical shape
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Explanation:

DNA is typically double - stranded with a helical shape and is made of chains of nucleotides. RNA, on the other hand, is usually single - stranded. While there are some double - stranded regions in certain types of RNA (like in tRNA secondary structure), the general structural characteristic that is exclusive in the context of this question (comparing typical DNA and RNA) is that RNA is often single - stranded.

Answer:

a single strand