名词
中文翻译：内含子
同义词：
['intron', 'intron sequence']
例句：
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1. The genetic code is composed of three sections: exons, introns, and untranslated regions.
遗传密码由三个部分组成：外显子、内含子和未翻译区域。
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2. Introns are regions within genes that are not transcribed into mRNA.
内含子是基因内的非转录区域。
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3. The study of introns has revealed new insights into the regulation of gene expression.
对内含子的研究表明了新的调控基因表达的见解。