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ribosomal RNA

noun

, Biochemistry.
  1. a type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. : rRNA


ribosomal RNA

noun

  1. biochem a type of RNA thought to be transcribed from DNA in the nucleoli of cell nuclei, subsequently forming the component of ribosomes on which the translation of messenger RNA into protein chains is accomplished Sometimes shortened torRNA
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


ribosomal RNA

/ rī′bə-sōməl /

  1. The RNA that is a structural component of a ribosome. Comparison of gene sequences of the ribosomal RNA of different organisms has been used to determine evolutionary relationships among the organisms.
  2. See more at RNA


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Word History and Origins

Origin of ribosomal RNA1

First recorded in 1960–65; ribosome + -al 1
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Example Sentences

So mutations — copying changes — rarely happen in ribosomal RNA.

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ribosoribosome