
好词典

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