看到有人提一个基因叫drd4-7r
然后题主说外国人有探索精神，有好奇心，中国人这个基因只有2%。
那我就好奇了，然后我就去翻了论文。
Dopamine D4 receptor gene DRD4 and its association with psychiatric disorders
7R allele is associated with various psychiatric disorders including ADHD, dependences, pathological gambling, alcoholism, drug dependence and bulimia nervosa [14,15].
7R被视为和一些精神问题有关，包括多动症、好赌、酗酒、药物上瘾、贪食症。
The 7R allele has low prevalence in Asia (2%), but high prevalence in America (48%) [13].
7R在亚洲人基因只有2%，美国人有48%。
我又搜了几篇，都没有说7R是好奇心，探索精神。大多都是一些精神问题，什么出轨啊一类的。
Despite early findings of an association between the DRD4 48bp VNTR and novelty seeking (a normal characteristic of exploratory and excitable people),[31][32] a 2008 meta-analysis compared 36 published studies of novelty seeking and the polymorphism and found no effect. Results are consistent with novelty-seeking behavior being a complex trait associated with many genes, and the variance attributable to DRD4 by itself being very small. The meta-analysis of 11 studies did find that another polymorphism in the gene, the -521C/T, showed an association with novelty seeking.[21] While human results are not strong, research in animals has suggested stronger associations [33][34][35][36][37][38] and new evidence suggests that human encroachment may exert selection pressure in favor of DRD4 variants associated with novelty seeking.[39][clarification needed]
表示这玩意儿和探索精神没有确切关系。
没想到一个酗酒、多动症基因能被土殖形容为我汉人没有探索精神。
在下佩服