Translation occurs by a special kind of polymerization where these transfer RNA's operate by Watson-Crick base pairing.

翻译过程是一种特殊的聚合过程,当tRNA按照,沃森克里克碱基互补配对原则进行配对

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For example, this transfer RNA has a unit here, at one end of the transfer RNA molecule.

举个例子,这个tRNA的一端,有一个GAG的碱基序列单元

耶鲁公开课 - 生物医学工程探索课程节选

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