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 group of three consecutive nucleotides [...]
In this article we will discuss about the chemical nature of the genetic material of organisms. The knowledge about the chemical nature of the genetic material was gathered from a number of experimental observations made with bacteria and viruses. These experimental observations led to the conclusion that all cellular organisms have DNA (deoxyribonucleic acid) as the genetic material. Only some [...]
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 [...]