The below mentioned article provides a note on the process of transcription. Transcription is the process of copying genetic information from one strand of the DNA into RNA. In transcription, only a segment of DNA or only one out of the two stands is copied into RNA. Unlike replication, which once set in, the total […]
Transcription: Biology Notes on Transcription
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Transcription in Prokaryotes and Eukaryotes | Genetics
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In this article we will discuss about the process of transcription in prokaryotes and eukaryotes. Transcription in Prokaryotes: DNA dependent RNA polymerase is the single enzyme that catalyses the transcription of all types of bacterial RNA. (i) Initiation: RNA polymerase binds to promoter and initiates transcription. It associates transiently with ‘initiation factor’ (σ) and uses […]
Classes of RNA Molecules and RNA Processing
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The following points highlight the three main classes of RNA molecules and RNA processing. The classes are: 1. Messenger RNA 2. Ribosomal-RNA 3. Transfer-RNA. Class # 1. Messenger RNA: Messenger RNA (m-RNA) is an informational molecule. The genetic message for protein synthesis contained in DNA is transcribed in the complementary ribonucleotide sequence of m-RNA. A […]
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