RNA — [är΄en΄ā′] n. a nucleic acid that is an essential component of all cells, composed of a long, usually single stranded chain of nucleotide units that contain the sugar ribose; ribonucleic acid: see MESSENGER RNA, TRANSFER RNA, RIBOSOMAL RNA … English World dictionary
RNA — For other uses, see RNA (disambiguation). A hairpin loop from a pre mRNA. Highlighted are the nucleobases (green) and the ribose phosphate backbone (blue). Ribonucleic acid (English pronunciation: /raɪbɵ.njuːˌkleɪ.ɨk ˈæsɪd/), or RNA, is one of… … Wikipedia
Ribosomal RNA — A molecular component of a ribosome, the cell s essential protein factory. Ribosomal RNA (rRNA) fabricates polypeptides (assemblies of amino acids that make up proteins). A tiny particulate structure located in the cytoplasm of the cell (outside… … Medical dictionary
RNA — Genetics. ribonucleic acid: any of a class of single stranded molecules transcribed from DNA in the cell nucleus or in the mitochondrion or chloroplast, containing along the strand a linear sequence of nucleotide bases that is complementary to… … Universalium
RNA — Short for ribonucleic acid, a nucleic acid molecule similar to DNA but containing ribose rather than deoxyribose. RNA is formed upon a DNA template. There are several classes of RNA molecules. They play crucial roles in protein synthesis and… … Medical dictionary
RNA — noun Etymology: ribonucleic acid Date: 1948 any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities compare messenger RNA, ribosomal RNA, transfer… … New Collegiate Dictionary
RNA — biochem. gen ribonucleic acid: any of a class of single stranded nucleic acid molecules of ribose and uracil, found chiefly in the cytoplasm of cells and in certain viruses; important in protein synthesis and in the transmission of genetic… … From formal English to slang
Ribosomal RNA — (rRNA) is the central component of the ribosome, the protein manufacturing machinery of all living cells. The function of the rRNA is to provide a mechanism for decoding mRNA into amino acids and to interact with the tRNAs during translation by… … Wikipedia
Ribosomal protein S19 — Ribosomal protein S19, also known as RPS19, is a human gene.cite web | title = Entrez Gene: RPS19 ribosomal protein S19| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=6223| accessdate = ] PBB Summary… … Wikipedia
ribosomal RNA — n. a form of RNA that is one of the constituent elements of ribosomes and is associated with messenger RNA and transfer RNA in the synthesis of proteins … English World dictionary