What is the importance of central dogma?

Answer 1

The central dogma of molecular biology was first enunciated by Francis Crick in 1958[1] and re-stated in a Nature paper published in 1970:[2] : The central dogma of molecular biology deals with the detailed residue-by-residue transfer of sequential information. It states that information cannot be transferred back from protein to either protein or nucleic acid. In other words, 'once information gets into protein, it can't flow back to nucleic acid.' The dogma is a framework for understanding the transfer of sequence information between sequential information-carrying biopolymers, in the most common or general case, in living organisms. There are 3 major classes of such biopolymers: DNA and RNA (both nucleic acids), and protein. There are 3×3 = 9 conceivable direct transfers of information that can occur between these. The dogma classes these into 3 groups of 3: 3 general transfers (believed to occur normally in most cells), 3 special transfers (known to occur, but only under specific conditions in case of some viruses or in a laboratory), and 3 unknown transfers (believed to never occur). The general transfers describe the normal flow of biological information: DNA can be copied to DNA (DNA replication), DNA information can be copied into mRNA, (transcription), and proteins can be synthesized using the information in mRNA as a template

Answer 2

The central dogma of DNA, also known as the central dogma of molecular Biology describes the sequence DNA -> RNA -> Protein. This is important because it shows the process of creating proteins from DNA and is the process by which cells regulate their functions.

Answer 3

In molecular biology, as in biology in general, the "central dogma" establishes the normal pathway observed in all living forms in the planet from genes to proteins. This central dogma is the "cornerstone" to understand the biology mechanisms of life. This central dogma settle in: DNA (or deoxyribonucleic acid) is a double strand molecule that keeps the inherit information in a succession of nucleotides that form genes, specific sequences of DNA that will be translated into a particular characteristic in the organism. The genes are "copied" into a single strand molecule called mRNA (or messenger ribonucleic acid) in a process called "transcription" occurring in the nucleus. The genetic information in the mRNA will give a protein (in theory, one protein per each gene) in a process called "translation" that takes place in the ribosome in the cytoplasm of the cell. A simple diagram illustrates this dogma: DNA D RNA " PROTEIN This means that eventually RNA molecule can go back to form a DNA molecule in a process called “reverse transcription”. There is no possibility to go back from protein to form neither an RNA molecule, nor a DNA one. This central dogma works for al living organisms, microbes, plants and animal forms, in planet Earth.