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单词 exon
释义

exon1

/ˈɛksən /
noun Biochemistry
A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence. Compare with intron.All of them contained usually short fragments of coding sequences corresponding to exons of single-copy genes....
  • Sequence data for each gene encompassed all coding exons and the intervening introns.
  • He concluded that recombination had separated the genealogical histories of introns and exons within these genes.

Derivatives

exonic

adjective

Origin

1970s: from expressed (see express1) + -on.

exon2

/ˈɛksɒn /
noun British
Each of the four officers acting as commanders of the Yeomen of the Guard.

Origin

Mid 18th century: representing the pronunciation of French exempt 'free from', from Latin exempt- 'taken out', from the verb eximere, so named because these officers were exempt from normal duties.

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更新时间:2024/11/12 10:08:11