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A second version of the central dogma is popular but incorrect. This is the simplistic DNA → RNA → protein pathway published by James Watson in the first edition of The Molecular Biology of the Gene (1965). Watson's version differs from Crick's because Watson describes a two-step (DNA → RNA and RNA → protein) process as the central ...
It was formulated by Francis Crick in 1955 in an informal publication of the RNA Tie Club, and later elaborated in 1957 along with the central dogma of molecular biology and the sequence hypothesis. It was formally published as an article "On protein synthesis" in 1958. The name "adaptor hypothesis" was given by Sydney Brenner.
The pathway from DNA to protein expression fundamental to the central dogma of biology. [2] In 1956, Francis Crick proposed what is now known as the "central dogma" of biology: [3] DNA encodes the genetic information required for an organism to carry out its life cycle. In effect, DNA serves as the "hard drive" which stores genetic data.
The extended central dogma of molecular biology includes all the processes involved in the flow of genetic information. Main article: Gene expression Gene expression is the molecular process by which a genotype encoded in DNA gives rise to an observable phenotype in the proteins of an organism's body.
This image shows an example of the central dogma using a DNA strand being transcribed then translated and showing important enzymes used in the processes. The central dogma plays a key role in the study of molecular genetics. The central dogma states that DNA replicates itself, DNA is transcribed into RNA, and RNA is translated into proteins. [24]
The central dogma outlines the fundamental principle that the sequence information encoded in the three major classes of biopolymer— DNA, RNA, and protein —can only be transferred between these three classes in certain ways, and not in others: specifically, information transfer between the nucleic acids and from nucleic acid to protein is ...
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Gene expression is the multi-step process by which a gene's information is converted into the structures and functions of a cell, following the central dogma of molecular biology v t