好词典

introns

UK /ˈɪntrɒn/US /ˈɪntrɑːn/

词源

源自‘intragenic region’(基因内区域)的缩写,1978年由生物学家Walter Gilbert提出。

noun

❶ 基因中不编码蛋白质的DNA片段,在转录后会被剪切掉,只保留外显子部分。

“Introns are removed from the pre-mRNA during the process of splicing.”

(在剪接过程中,内含子从前体mRNA中被移除。)

“Scientists study introns to understand their role in gene regulation.”

(科学家研究内含子以了解它们在基因调控中的作用。)

同义词:non-coding sequence, intervening sequence

常见短语

intron retention — 指内含子在mRNA剪接过程中未被移除的现象,可能导致异常的蛋白质产生。

“Intron retention has been linked to certain genetic diseases.”

(内含子滞留与某些遗传疾病有关。)