exon









exon


exon 1 [ek-son] EXAMPLES|WORD ORIGIN noun (in Britain) one of four yeomen of the guard who act as commanding officers in the absence of higher authority. Liberaldictionary.com

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  • Origin of exon 1 1645–55; earlier exant, for French exempt (spelling altered to show French pronunciation)Also called exempt. exon 2 [ek-son] noun Genetics. any portion of an interrupted gene that is represented in the RNA product and is translated into protein. Compare intron. Origin of exon 2 1975–80; ex(pressed sequence) + -on1 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for exon Historical Examples of exon

  • We have not seen dominicum used as a substantive; but in the Exon.

    Domesday Book and Beyond

    Frederic William Maitland

  • I do not believe that there could be found under heaven another man like this exon.

    A Popular History of France From The Earliest Times

    Francois Pierre Guillaume Guizot

  • He soon returned, accompanied by an exon of the short robe, named Larchier.

    A Popular History of France From The Earliest Times

    Francois Pierre Guillaume Guizot

  • The exon looked all round the room; he knew every one of the magistrates; the accused were sitting right in front of him.

    A Popular History of France From The Earliest Times

    Francois Pierre Guillaume Guizot

  • Exon, eks′on, n. one of the four officers of the yeomen of the Royal Guard.

    Chambers’s Twentieth Century Dictionary (part 2 of 4: E-M)

    Various

  • British Dictionary definitions for exon exon 1 noun British one of the four officers who command the Yeomen of the Guard Word Origin for exon C17: a pronunciation spelling of French exempt exempt exon 2 noun any segment of a discontinuous gene the segments of which are separated by intronsCompare intron Derived Formsexonic, adjectiveWord Origin for exon C20: from ex- 1 + -on 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 exon in Medicine exon [ĕk′sŏn] n. A nucleotide sequence in DNA that carries the code for the final mRNA molecule and thus defines a protein’s amino acid sequence.coding sequence Related formsex•on′ic adj. The American Heritage® Stedman’s Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. exon in Science exon [ĕk′sŏn] A segment of a gene that contains information used in coding for protein synthesis. Genetic information within genes is discontinuous, split among the exons that encode for messenger RNA and absent from the DNA sequences in between, which are called introns. Genetic splicing, catalyzed by enzymes, results in the final version of messenger RNA, which contains only genetic information from the exons. Compare intron. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. exon in Culture exon

    Stretches of DNA in genes that code for proteins. In eukaryotes, exons in a given gene are generally separated from each other by stretches of DNA that do not contain instructions for constructing proteins. (Compare intron.)

    The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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