RNA (1)

[Abbr. of ribonucleic acid]
A nucleic acid that controls protein synthesis in all living cells and is the sole nucleic acid in certain viruses. It differs from DNA in that its sugar is ribose rather than deoxyribose, and its pyrimidine base is uracil rather than thymine. RNA occurs in several forms that are determined by the number of nucleotides.
SEE: DNA

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