Answer :
in RNA, Ribose is the molecule that forms the backbone; as opposed to DNA, in which deoxyribose forms the backbone
ANSWER:
DNA has double strands while RNA consists of a single strand
EXPLANATION:
The structural characteristic observed in RNA but not in DNA is a single strand. RNA and DNA are macromolecules composed of nucleotides arranged in chains. DNA has double strands organized in a helical shape. RNA normally consists of a single strand which is not characteristic for DNA.