Page 97 - The Miracle of Protein
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ADNAN OKTAR (HARUN YAHYA)          95



            RNA polymerase can copy genes for proteins in more than one
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            region of the DNA. This can be compared to a number of peo-
            ple reading the different pages of the same book at the same
            time. Performing this exceedingly complex multi-stage process

            in several places simultaneously without a single mistake re-
            quires enormous care and competence. How many tasks can a
            rational, conscious human handle at the same time? How many
            products can he supervise concurrently? Answer these ques-
            tions, and you can more clearly understand the abilities pos-
            sessed by a mRNA molecule.





                 Additional Structures that the
                Ribosome Needs

                 We have already seen that the ribosomes are like factories.
            However, in order for the production in this factory to continue
            accurately and swiftly, other proteins are needed. After the mR-

            NA that carries the code of the amino acids attaches to the
            small subunit of the ribosome, the tRNAs carrying the corre-
            sponding amino acids attach to site A of the ribosome with the
            help of a molecule called Ef-Tu. Following various control
            processes, a bond will be formed with the amino acid on the tR-

            NA in site P. If an error is detected in these processes, the faulty
            amino acid will be discarded. With the help of another protein
            called Ef-G, the upper part of the ribosome will be moved one
            step further, followed by the lower part also moving one step
            further. In this way, tRNAs in the sections P and A will be
            moved to sections E and P. As a result, space will be cleared

            both for the next amino acid specified by the mRNA, and the
            tRNA that carries that specific amino acid.
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