Rna

Definition

noun

Abbreviation for ribonucleic acid: a nucleic acid that is generally single stranded (double stranded in some viruses) and plays a role in transferring information from DNA to protein-forming system of the cell.


Supplement

Structure: Ribonucleic acid (RNA) is a molecule consisting of a long linear chain of nucleotides. Each nucleotide unit is comprised of a sugar, phosphate group and a nitrogenous base. It differs from a DNA molecule in a way that the sugar backbone is a ribose (deoxyribose in DNA) and the bases are adenine, guanine, cytosine and uracil (thymine in DNA).

Location: In eukaryotes, it is found in the nucleus and in the cytoplasm

Function: In some viruses, RNA is the genetic material. For most organisms, RNAs are involved in:


Compare: DNA

See also: nucleic acid


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified on 25 August 2009, at 07:50. This page has been accessed 154,117 times. 
What links here | Related changes | Permanent link