Xie Wanying heard this, and thought Student Duan really is a wealthy person.
No, it's not Student Duan, it's Immortal Brother who is really wealthy. The research funding for Student Duan is overseen and applied by Immortal Brother. Transgenic mice are much more expensive than healthy mice. Simply put, a transgenic mouse costs several hundred per mouse, while a healthy mouse costs several dozen.
It is possible that Student Duan might save money by producing transgenic mice himself. However, if he were to start from scratch to create transgenic mice, the complexity and time consumption of the experiment would probably drive the experimenter insane. Student Duan has to not only conduct scientific research but also learn and work night shifts at the hospital, and as a student, he doesn't have anyone else to help him, leaving him to do the entire experiment alone.
