gene effect

例句：

1. 1. The gene effect on behavior is still not fully understood.
   对行为的影响仍然不完全理解。
2. 2. Researchers are trying to identify the gene effect on intelligence.
   研究人员正在试图识别基因对智力的影响。
3. 3.This study suggests that environmental factors may have a significant gene effect on health outcomes.
   这项研究表明，环境因素可能对健康结果有显著的基因影响。