RNA

RNAA. adenineU. uracilC. cytosineG. guanine

RNA

R0265100 (är′ĕn-ā′)n. A nucleic acid present in all living cells and many viruses, consisting of a long, usually single-stranded chain of alternating phosphate and ribose units, with one of the bases adenine, guanine, cytosine, or uracil bonded to each ribose molecule. RNA molecules are involved in protein synthesis and sometimes in the transmission of genetic information. Also called ribonucleic acid.

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[r(ibo)n(ucleic) a(cid).]

RNA

n (Biochemistry) biochem ribonucleic acid; any of a group of nucleic acids, present in all living cells, that play an essential role in the synthesis of proteins. On hydrolysis they yield the pentose sugar ribose, the purine bases adenine and guanine, the pyrimidine bases cytosine and uracil, and phosphoric acid. See also messenger RNA, transfer RNA, ribosomal RNA, DNA

RNA

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 information transcribed from DNA. Compare messenger RNA, ribosomal RNA, transfer RNA. [1945–50]

RNAA: adenineC: cytosineU: uracilG: guanine

RNA

(är′ĕn-ā′) Short for ribonucleic acid. The nucleic acid that determines protein synthesis in all living cells and the genetic makeup of many viruses. RNA consists of a single strand of nucleotides in a variety of lengths and shapes and is mainly produced in the cell nucleus. ♦ Messenger RNA is RNA that carries genetic information from the cell nucleus to the structures in the cytoplasm (known as ribosomes) where protein synthesis takes place. ♦ Transfer RNA is RNA that delivers the amino acids necessary for protein synthesis to the ribosomes. Compare DNA.

RNA

ribonucleic acid.See also: Heredity

Thesaurus

Noun

1.

RNA - (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell; "ribonucleic acid is the genetic material of some viruses"ribonucleic acidbiochemistry - the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistryribose - a pentose sugar important as a component of ribonucleic acidadenine, A - (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNAcytosine, C - a base found in DNA and RNA and derived from pyrimidine; pairs with guanineinformational RNA, messenger RNA, mRNA, template RNA - the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cellnRNA, nuclear RNA - ribonucleic acid found in the nucleolus of the cellacceptor RNA, soluble RNA, transfer RNA, tRNA - RNA molecules present in the cell (in at least 20 varieties, each variety capable of combining with a specific amino acid) that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA)guanine, G - a purine base found in DNA and RNA; pairs with cytosinenucleic acid - (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cellspolymer - a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomersU, uracil - a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

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