| 释义 |
noun ˈɛksənˈɛksɑn Biochemistry A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence. Compare with intron Example sentencesExamples - The structure of the invertase genes are fairly similar, each containing between six and eight exons.
- All of them contained usually short fragments of coding sequences corresponding to exons of single-copy genes.
- As a result, the protein sequences encoded by these exons are nearly identical between the two species.
- He concluded that recombination had separated the genealogical histories of introns and exons within these genes.
- Sequence data for each gene encompassed all coding exons and the intervening introns.
Derivatives adjective Biochemistry Polymerase chain reaction primer pairs were designed for exons 2-12 outside the exonic borders. Example sentencesExamples - Most of the exonic nucleotide changes are silent third-position changes.
- Homology of the exonic nucleotide sequence with human and murine sequences is high (89% and 85% sequence identity, respectively).
- Amplification of exonic regions facilitated this step, since indel polymorphism within exon regions was observed in only one gene.
- In each case, a highly conserved region was found in the intron downstream of the editing site and this region was shown to be complementary to the region of the exonic editing site.
Origin 1970s: from expressed (see express1) + -on. noun ˈɛksɒnˈɛksɑn 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. nounˈeksänˈɛksɑn Biochemistry A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence. Compare with intron Example sentencesExamples - He concluded that recombination had separated the genealogical histories of introns and exons within these genes.
- All of them contained usually short fragments of coding sequences corresponding to exons of single-copy genes.
- As a result, the protein sequences encoded by these exons are nearly identical between the two species.
- Sequence data for each gene encompassed all coding exons and the intervening introns.
- The structure of the invertase genes are fairly similar, each containing between six and eight exons.
Origin 1970s: from expressed (see express) + -on. nounˈeksänˈɛksɑn 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. |