Search results
Results From The WOW.Com Content Network
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 ...
The gene is a unit of hereditary information that exists in many physical copies in the world, and which particular physical copy will be replicated and originate new copies does not matter from the gene's point of view. [20] A selfish gene could be favored by selection by producing altruism among organisms containing it.
With the discovery of the nature and roles of nucleic acids in genetics, this model prompted Francis Crick's so-called Central Dogma of Molecular Biology: "[Sequential] information cannot be transferred back from protein to either protein or nucleic acid." [10] [11]
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]
Crick also used the term "central dogma" to summarise an idea that implies that genetic information flow between macromolecules would be essentially one-way: DNA → RNA → protein Some critics thought that by using the word "dogma", Crick was implying that this was a rule that could not be questioned, but all he really meant was that it was a ...
The flow of information is unidirectional: information is transferred from nucleotide sequences into the amino acid sequence of proteins, but it never transfers from protein back into the sequence of DNA—a phenomenon Francis Crick called the central dogma of molecular biology. [75]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Gene expression. Central dogma of molecular biology: nucleosome – genetic code – codon – transcription factor – transcription – translation – RNA – histone – telomere; heterochromatin – promoter – RNA polymerase; Protein biosynthesis – ribosomes; Gene regulation. operon – activator – repressor – corepressor ...