单词：gal operon
gal operon的用法和样例：
例句
- Glucose blocks induction of the lac operon by utilizing a positive control mechanism.葡萄糖通过正调控机制阻止乳糖操纵元的诱导。
- Consequently, if glucose is present in the medium, it is redundant to induce the lac operon.因此，如果培养基中存在葡萄糖，诱导乳糖操纵元的打开就是多余的。
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