Cytoplasmic translation system has the following number of t-RNAs
In molecular biology and genetics, translation is the process in which ribosomes in the cytoplasm or ERsynthesize proteins after the process of transcription of DNA to RNA in the cell's nucleus. The entire process is called gene expression. In translation, messenger RNA (mRNA) is decoded in the ribosome decoding center to produce a specific amino acid chain, or polypeptide. The polypeptide later foldsinto an active protein and performs its functions in the cell. The ribosomefacilitates decoding by inducing the binding of complementary tRNA anticodonsequences to mRNA codons. The tRNAs carry specific amino acids that are chained together into a polypeptide as the mRNA passes through and is read by the ribosome. Translation proceeds in three phases: Initiation: The ribosome assembles around the target mRNA. The first tRNA is attached at the sta codon. Elongation: The tRNA transfers an amino acid to the tRNA corresponding to the next codon. The ribosome then moves (translocates) to the next mRNA codon to continue the process, creating an amino acid chain. Termination: When a peptidyl tRNA encounters a stop codon, then the ribosome folds the polypeptide into its final structure. Ref satyanarayana 4e
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Metabolism of nucleic acids