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Q: A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 183 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. The beam is directed onto a 0.220-kg tumor, which receives a biologically equivalent dose of 153 rem.
Ribosomal RNA (rRNA) is used in the manufacture of ribosomes where mRNA and tRNA come together in the synthesis of proteins. OBJECTIVE: The purpose of this exercise is to become familiar with the structure of nucleic acids, DNA, RNA and to reinforce the role of DNA and RNA in the process of protein synthesis.herefore, appreciation of the structure of nucleic acids and DNA, and the process of protein synthesis are essential prerequisites to the understanding of control of cellular activity, drug action, and various disease processes. Nucleic acids are composed of subunits called nucleotides.