As I'm a comp sci/math major I see a lot of overlap in classes for math and physics majors at my school. I am thinking of a genetics major as well since I'm already following the genetics curriculum, just at my own pace. I do plan on going to grad school and the later graduation date doesn't bother me at the slightest. I'm curious to whether there are any triple majors out there and if not are you willing to pick one up? Also how does it look to grad school admissions committees because I know as long as you have legitimate research experience as well as grades and recommendations your in the door.