If it was directly transcribed there'd be regions that are important for making insulin and regions that are not.

如果直接转录的话,那被转录的序列中就会既包括了,和生成胰岛素有关的重要区域,也包括了与之无关的区域

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And your cells making transfer RNA, if they make a transfer RNA molecule that has here, they only put leucine at the other end.

你的细胞在生成tRNA的过程中,如果生成的tRNA序列是GAG,那它的另一端携带的就只能是亮氨酸

耶鲁公开课 - 生物医学工程探索课程节选