为了观察进行情况，他用黄色蛋白质标记耐脱氧土霉素的大肠埃希菌，用蓝色的蛋白标记对脱氧土霉素敏感的细菌。

To see what was going on, he labelled the doxycycline-resistant strain with a yellow protein and the sensitive strain with a blue protein.

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蚂蚁还吃嫩叶顶端的黄色结构：这些结构富含蛋白质，除了吸引蚂蚁外似乎对树没有作用。

The ants also eat yellow structures at the tip of leaflets: these are protein rich and seem to have no function for the tree except to attract ants.

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蚂蚁还吃小叶顶端的黄色组织：这些结构富含蛋白质，除了吸引蚂蚁外，似乎对树没有任何其他作用。

The ants also eat yellow structures at the tip of leaflets: these are protein-rich and seem to have no function for the tree except to attract ants.

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