Although genetic engineering technology is used in various fields, few students have sufficiently learned about genes before entering university. In this study, we gave a lecture on genes to 51 undergraduate students at Tokushima University and asked them to experience molecular biology experiments. We investigated the genotypes of ACTN3 and ACE in the participating students and fed back the results to them, and then conducted a questionnaire survey on students’ awareness of the genes. As a result, the students’ knowledge about the genes increased and their interest in the genes also increased. A difference in consciousness between humanities and science students had been observed before the lecture, but their interest in genes increased after the lecture in both groups.