Word · Frequency #18250
exons
外显子
exons is the plural of exon.
核心释义
a sequence of a gene's DNA that codes for a protein
- 1.
国王侍卫队的军官
An officer of the King's Body Guard of the Yeomen of the Guard.
- 2.
转录基因中存在于最终功能性RNA分子中的区域。
A region of a transcribed gene present in the final functional RNA molecule.
国王侍卫队的军官;转录基因中存在于最终功能性RNA分子中的区域。
用法In use
In the human genome, an exon often carries the instructions for building part of a protein.
用法提示:这里 exon 是名词,指基因中编码蛋白质的片段。
Scientists compared the exons of the two genes to find the mutation.
用法提示:这里用复数 exons,表示多个外显子。
The mutation in this exon changes the shape of the protein.
用法提示:exon 在句中作主语,指具体的外显子。
the exon(s) of [gene]
表示外显子所属的基因时,用 of 结构。
The exons of this gene were identified.
这个基因的外显子已被鉴定出来。
exons + plural verb
exon 是可数名词,复数形式为 exons,作主语时谓语用复数。
相关词与表达Connections
搭配Collocations
- protein-coding exon
- 蛋白质编码外显子
- This mutation lies in a protein-coding exon, so it may affect the final protein.该突变位于一个蛋白质编码外显子中,因此可能影响最终蛋白质。
- exon skipping
- 外显子跳跃
- Exon skipping can restore the reading frame in some genetic disorders.外显子跳跃可以在某些遗传病中恢复阅读框。
- exon-intron boundary
- 外显子-内含子边界
- Splice sites at exon-intron boundaries are essential for correct mRNA processing.外显子-内含子边界上的剪接位点对正确的mRNA加工至关重要。
- exon shuffling
- 外显子改组
- Exon shuffling is thought to create new protein domains over evolutionary time.人们认为外显子改组在进化过程中会产生新的蛋白质结构域。
学习提示Learner notes
记忆技巧Memory Tip
把 exon 联想为 expressed on:基因表达时真正“显”在最终蛋白里的片段,就是外显子。
语境与语域Context & Register
语域:formal 常见场景:分子生物学、遗传学、基因检测 外显子属于分子生物学和遗传学专业术语,通常出现在学术文献、医学检验报告等正式语境中,日常口语很少使用。
发音与拼写Pronunciation & Spelling
Only hexon /ˈhɛksɒn/ genuinely rhymes with exon /ˈɛksɒn/. Axon /ˈæksɒn/ and xenon /ˈzɛnɒn/ look similar but differ in the stressed vowel (or initial consonant cluster), and Dixon /ˈdɪksən/ and Nixon /ˈnɪksən/ reduce the final syllable to /sən/. Exodus shares the spelling chunk exo- but not the rhyming ending.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.