The below mentioned article provides notes on RNA synthesis. RNA synthesis, also known as DNA transcription, essentially consists of making an RNA copy of a segment of DNA. In this process, a complementary single-stranded RNA molecule is synthesized using one of the two strands of a DNA segment as template. The strand so copied is known as the coding strand [...]
The following points highlight the four types of RNA. The types are: 1. Ribosomal RNA 2. Transfer RNA 3. Messenger RNA 4. Genetic RNA. Type # 1. Ribosomal RNA (rRNA): It is the most abundant RNA (70-80% of total) which has 3-4 types. Some of its types (23S, 28S) are the longest of all RNAs. As the name indicates, rRNA [...]
The below mentioned article provides a study note on Ribozyme and RNA World Hypothesis. According to this hypothesis primordial cells lacking protein synthesis use RNA both as the repository of genetic information and as enzymes that catalyse metabolism. Enzymatic catalysis which was earlier thought to be the exclusive domain of proteins, but is now established that RNA molecules can cut, [...]