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....
DerivativesexonicOrigin1970s: from expressed (see express1) + -on. exon2/ˈɛksɒn /noun British Each of the four officers acting as commanders of the Yeomen of the Guard. OriginMid 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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