Ribosomal RNA (RNA-r)
R RNA described in the nucleus and then associated with nuclear proteins to form ribosomes in the cytoplasm and constitutes approximately 90% of the RNA in the cell r and ribosome is essential compound that carries reading order of bases-RNA code and the makes the translation of tripletit in a certain range of amino acids during protein synthesis. Each ribozyme consists of two subnjësive (nënnjësive- a small and a large) divided citoplazëm. They join in countries where protein synthesis is performed. Synthesis of all RNAs, catalyzed by the enzyme RNA polymerase (nukleotidiltransferaza) in which case it is necessary the presence of DNA as template parent. In eukaryotic cells (humans), most are segments that encode genes or exons interrupted by some segments that encode (no information), called introns, which consist of 60 to 100,000 nucleotides in length. lntronet have unknown function, are regions of DNA that do not code for protein synthesis, are located between the regions that encode (exons, 100-300 bases in length) for protein synthesis. While prokaryotic organisms cells are not well differentiated nucleus (ie nuclei material is distributed throughout the cell) as p.sh mikroorganizmut. Bacteria have only one chromosome without mitochondria (are organelle membrane), but the cytoplasm, nukleoid, membrane, ribosomes and cell wall.
