RNA world

Definition

The RNA world is a hypothetical stage in the evolutionary history of life on Earth in which self-replicating RNA molecules proliferated before the evolution of DNA and proteins. The term also refers to the hypothesis that posits the existence of this stage. Alexander Rich first proposed the concept of the RNA world in 1962, and Walter Gilbert coined the term in 1986.

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A-DNA AP News Abiogenesis Acetaldehyde Acetamide Acetic acid Acetone Acetonitrile Acetyl-CoA Acetylene Acrolein Acrylonitrile Active site Adenine Adenosine triphosphate Albumin Alexander D. Johnson Alexander Rich Aliphatic Alternative abiogenesis scenarios Aluminium(I) hydroxide Aluminium(II) oxide Aluminium isocyanide Aluminium monochloride Aluminium monofluoride Amino acid Amino radical Aminoacetonitrile Aminoacyl-tRNA Ammonia Ammonium Angiosperm Animal Anthracene Apicoplast Aptamer Archaea Argonium Artificial cell Aspartic acid Asteroid impact Astrobiology Astrochemistry Atmospheric nitrogen Atomic and molecular astrophysics Autocatalysis Autocatalytic set Avsunviroidae B-DNA Bacteria Bacteriome Bacteriophage Qβ Barbituric acid Base pair Benzene Benzonitrile Biocatalysis Biological dark matter Boron Bruce Alberts Buckminsterfullerene Butyronitrile C-Silicon dicarbide C70 fullerene CCP radical Cancer cell Carbodiimide Carbon Carbon cation Carbon dioxide Carbon monophosphide Carbon monosulfide Carbon monoxide Carbonyl sulfide Carl Woese Carl Zimmer Catalysis Catalyze Cell (biology)Cell division Chemical formula Chicken or the egg Chirality (chemistry)Chloroplast Chromoplast Chromosome Circular chromosome Circumstellar dust Circumstellar envelope Clonally transmissible cancer Coacervate Coenzyme F420 Cofactor (biochemistry)Colicin Computer simulation Copenhagen University Cosmic dust Cosmic ray Cosmid Cosmochemistry Cyanamide Cyano radical Cyanoacetylene Cyanoallene Cyanobutadiynyl radical Cyanoformaldehyde Cyanomethyl Cyanopolyyne Cyclopentindene Cyclopropenone Cyclopropenylidene Cytidine Cytidine triphosphate Cytosine DNA DNA replication DNA transposon DNA virus Darwinism Deamination Defective interfering particle Definition of life Dennis Bray Deoxyribose Deoxyribozyme Deoxythymidine triphosphate Deuterium Diacetylene Diamidophosphate Diatomic carbon Diatomic molecule Diazenylium Dicarbon monoxide Diffuse interstellar band Dihydroxyacetone Dihydroxyacetone phosphate Dimethyl ether Directed evolution Disilicon carbide Double-stranded RNA viruses DsDNA-RT virus E-Cyanomethanimine Earliest known life forms Earth Enantiomer Endogenous retrovirus Endogenous viral element Endosymbiont Enzyme Ethanethiol Ethanimine Ethanol Ethyl formate Ethylene Ethylene glycol Ethylene oxide Ethynyl radical Eukaryote Evolution of sexual reproduction Evolutionary history of life Extrachromosomal DNA Extraterrestrial life Extraterrestrial liquid water Fertility factor (bacteria)First universal common ancestor Flavin adenine dinucleotide Flavin mononucleotide Fluoromethylidynium Forbidden mechanism Formaldehyde Formamide Formamide-based prebiotic chemistry Formic acid Formyl radical Forward compatibility Fosmid Francis Crick Fullerenes Fulminic acid Fungal prion Fungus GADV-protein world hypothesis Garland Science Gene Gene duplication Genetic variation Genetics Genome Genomic island Geologic time scale Georgia Institute of Technology Gerontoplast Giant virus Glyceraldehyde Glycine Glycol nucleic acid Glycolaldehyde Glycolonitrile Graham Cairns-Smith Graphene Group II intron Group I catalytic intron Guanine Guanosine triphosphate H2NCO+HC4N HCCN Hadean Halonium ion Hammerhead ribozyme Hans Kuhn (chemist)HeLa Heavy water Helium hydride ion Helper dependent virus Helper virus Hemolithin Heptatrienyl radical Heredity Hexatriynyl radical History of research into the origin of life Homochirality Horizontal gene transfer Howard Hughes Medical Institute Hydrogen Hydrogen chloride Hydrogen cyanide Hydrogen deuteride Hydrogen fluoride Hydrogen isocyanide Hydrogen peroxide Hydrogen sulfide Hydrogenosome Hydrolysis Hydromagnesium isocyanide Hydroperoxyl Hydroxyl Hydroxyl radical Imidogen Incertae sedis Information storage Intergalactic dust Interplanetary medium Interspersed repeat Interstellar formaldehyde Interstellar medium Introns Iron(II) cyanide Iron(II) oxide Iron–sulfur world hypothesis Iron–sulfur world theory Isocyanic acid Isocyanoacetylene Isoformyl James D. Watson James Ferris James Watson Jeewanu Jennifer Stern John Sutherland (chemist)Julian Lewis (biologist)Kappa organism Kerogen Ketene Ketenimine Ketenyl Last universal common ancestor Leslie Orgel Leucoplast Life Linear chromosome List of interstellar and circumstellar molecules Living fossil Luis P. Villarreal Magnesium cyanide Magnesium isocyanide Magnesium monohydride Mars Martin Raff Melamine Metabolite Meteorite Methane Methanethiol Methanol Methoxy Methoxyethane Methyl acetate Methyl cation Methyl formate Methyl group Methyl isocyanate Methyl isocyanide Methyl radical Methylamine Methylene (compound)Methylene amidogen Methylenimine Methylidyne radical Methylidynephosphane Michael Yarus Miller–Urey experiment Mitochondrion Mitosome Mobile genetic elements Mobilome Model lipid bilayer Moiety (chemistry)Molecular Biology of the Cell (book)Molecule Molecules in stars Molybdenum Monomers Murchison meteorite N-Methylformamide NASA Nanobacterium Nanobe Naphthalene Natural selection Nebulae New Scientist New York City New York Times Nexus for Exoplanet System Science Nicholas Wade Nicotinamide adenine dinucleotide Nicotinamide mononucleotide Nicotinic acid Nitric oxide Nitrile Nitrogen Nitroplast Nitrous oxide Nitroxyl Non-cellular life Non-coding DNA Nucleic acid Nucleobase Nucleotide Octatetraynyl radical Organic compound Organic molecules Organism Origin of DNA Origin of life Origin of replication Orthomyxoviridae Outer space Oxygen Ozone PAH world PAH world hypothesis PAHs Paleobiology Panspermia Parakaryon Patrick Forterre Pentamer Peptide Peptide-RNA world Peptide bond Peptide bonds Peptide nucleic acid Peptidyl transferase Peter Walter Phagemid Phosphine Phosphodiester bond Phosphopantetheine Phosphorus mononitride Phosphorus monoxide Photodissociation region Plant Plasmid Plastid Polycyclic aromatic hydrocarbon Polycyclic aromatic hydrocarbons Polymerase Polymerase chain reaction Polynucleotide Polyyne Pospiviroidae Potassium chloride Potassium cyanide Pre-cell Pre-mRNA Prebiotic (chemistry)Primer extension Primordial sandwich Primordial sea Primordial soup Prion Propadienylidene Propene Prophage Propionaldehyde Propionitrile Propynal Propyne Propynylidyne Protein Proteinoid Protist Protocell Protonated carbon dioxide Protonated cyanoacetylene Protonated formaldehyde Protonated hydrogen cyanide Protostar Provirus Pseudo-panspermia Purine Pyrene Pyrimidine Quasispecies model Quinolinic acid R-factor RNA RNA-based evolution RNA-dependent RNA polymerase RNA base RNA editing RNA interference RNA methylation RNA thermometer RNA virus RNA world hypothesis RNP world RRNA Red giant Rensselaer Polytechnic Institute Repeated sequence (DNA)Replicon (genetics)Reproduction Retrotransposon Retrovirus Retrozyme Ribonuclease P Ribonucleoprotein Ribonucleotides Ribose Ribose aminooxazoline (RAO)Ribosomal RNA Ribosome Riboswitch Riboviria Ribozyme Rosalind Franklin Satellite (biology)ScienceDaily Scripps Research Institute Secondary chromosome Secondary structure Self-replicating Self-replication Shine–Dalgarno sequence SiNC Sidney Altman Silane Silicon-carbide cluster Silicon carbide Silicon carbonitride Silicon monosulfide Silicon monoxide Silicon tricarbide Silylidyne SnRNP Sodium chloride Sodium cyanide Sodium hydroxide Sodium iodide Spectroscopy Spontaneous generation Steven Benner Subviral agents Sugar Sulfanyl Sulfur dioxide Sulfur mononitride Sulfur monoxide Sulphobes Synthetic virology TRNA Tandem repeat Taurine cattle Tautomer Telomerase Telomeres Terminator (genetics)The Major Transitions in Evolution The New York Times The Washington Post Theodor Otto Diener Thermosynthesis Thiocyanic acid Thioformaldehyde Thioformyl Thioxoethenylidene Tholin Thomas R. Cech Threose nucleic acid Thymine Ti plasmid Titanium(II) oxide Titanium dioxide Transfer RNA Transposable element Transpoviron Triatomic molecule Tricarbon Tricarbon monosulfide Tricarbon monoxide Trihydrogen cation Trophosome UV light Ultraviolet germicidal irradiation Ultraviolet light Universe Universe Today University of Manchester Uracil Uridine Uridine triphosphate Vault (organelle)Vinyl alcohol Vinyl cyanide Viral eukaryogenesis Viral vector Viroid Virome Virophage Virulence factor Virus Virus world Virusoid Walter Gilbert Water Wobble base pair Ångström

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