Definition of rna Rna
RNA
We found 4 definitions of rna from 4 different sources.
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What does rna mean?
WordNet
Noun |
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| 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 acid, RNA | ||
| polymer a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers | ||
| biochemistry the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry | ||
| ribose a pentose sugar important as a component of ribonucleic acid | ||
| adenine, a (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA | ||
| cytosine, c a base found in DNA and RNA and derived from pyrimidine; pairs with guanine | ||
| informational 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 cell | ||
| nrna, nuclear rna ribonucleic acid found in the nucleolus of the cell | ||
| acceptor 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 cytosine | ||
| nucleic acid (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells | ||
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OmegaWiki DictionaryOmegaWiki Dictionary Ω
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rna
A nucleic acid polymer containing ribose rings, transcribed from DNA by enzymes and used for the translation of genes into proteins.
Wikipedia 
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RNA is an acronym for ribonucleic acid, a nucleic acid. RNA is transcribed from DNA by an enzyme called RNA polymerase and further processed by other enzymes.
RNA translates genes into proteins, transferring amino acids from the nucleus to the ribosome to form proteins, and also translating the transcript into proteins. This process is called translation.
The first three bases are also found in DNA, but Uracil replaces Thymine as a complement to Adenine.
RNA also contains ribose as opposed to deoxyribose found in DNA.
RNA is the carrier of genetic material in different types of viruses such as AIDS virus i.e. HIV (HUMAN IMMUNO DEFICIENCY VIRUS) and in that case called a retrovirus.
mRNA.
mRNA, or "Messenger" RNA is the complement strand of DNA. A single strand of DNA is a blueprint for mRNA which is transcribed from that DNA strand. DNA cannot leave the nucleus because of it's size, but mRNA can. Once transcribed, the mRNA leaves the nucleus and is attached to tRNA which attached to the Ribosomes.
tRNA.
tRNA, or "Transfer" RNA is the complement (opposite) strand to mRNA and attaches to Ribosomes to be translated into a polypeptide (protein) chain. Each tRNA codon, group of three nitrogenous bases, codes for a specific amino acid which all bind together to form a protein. For example, codons UUU or UUC code for the amino acid Phenylalanine.
Part of speech
🔤- rna, noun, singular of rnas.
