The following points highlight the three main stages for translation of RNA and protein synthesis. The stages are: 1. Initiation of Polypeptide 2. Elongation of Polypeptide: 3. Termination of Polypeptide. Translation of RNA: Stage # 1. Initiation of Polypeptide: Ribosomes exist as separate large and small subunits. The first step in translation involves the binding of the small ribosomal subunit [...]
In this article we will discuss about the Transcriptional and Post-Transcriptional Regulation of Gene Expression in Eukaryotes. Transcriptional Regulation of Gene Expression in Eukaryotes: The variation in the rate of transcription often regulates gene expression. Interactions between RNA polymerase II and basal transÂcription factors leading to the formation of the transcription initiation complex influence the rate of transcription. Other transcription [...]
In this article we will discuss about the Transcriptional and Post-Transcriptional Regulation in Prokaryotes. Transcriptional Regulation of Gene Expression in Prokaryotes: Gene transcription is regulated in bacteria through a complex of genes termed operon. These are transcriptional units in which several genes, with related functions, are regulated together. Other genes also occur in operons which encode regulatory proteins that control [...]