In this article we will discuss about the processing of mRNA in prokaryotes and eukaryotes. In prokaryotes, there is a little or no processing of mRNA transcripts. Prokaryotic mRNA is degraded very rapidly from 5′ end. Therefore, to rescue from degradation it is translated before being finally transcribed. Ribosomes assemble on unfinished mRNA and first […]
Processing of mRNA in Prokaryotes and Eukaryotes | Genetics
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Role of RNA in Protein Synthesis | Microbiology
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The processed RNA molecules take part in protein synthesis with the help of ribosomes. All the three types of RNAs are involved in protein synthesis in the following main steps: (i) Activation of amino acids, (ii) Transfer of amino acid to tRNA, (iii) Initiation of protein synthesis, (iv) Elongation of the polypeptide chain. During the […]
Process of Transcription of RNA | Genetics
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The tRNA, mRNA and rRNA are involved in the process of transcription. However, an enzyme transcriptase i.e. DNA-dependent RNA polymerase is required for the synthesis of RNA by using ribonucleotide triphosphates i.e ATP, GTP, CTP and UTP. Structure and function of RNA polymerase are described herewith. 1. RNA Polymerase: On a DNA template elongation of […]
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