negative regulator gene

例句：

1. 1. The gene responsible for this phenotype is a negative regulator of the cell cycle.
   负责这种表型的基因是细胞周期的负调节因子。
2. 2. In cancer research, understanding the function of negative regulator genes could lead to new treatments.
   在癌症研究中，了解负调节基因的功能可能会带来新的治疗手段。
3. 3. The discovery of this gene has opened up new possibilities for genetic engineering.
   这一基因的发现为遗传工程开辟了新的可能性。