To cover all your bases, you should take calc 1 and statistics. I am fairly sure that calc 2 is no longer a strict requirement at any school (someone please correct me if I'm wrong) and can be replaced with statistics.
Keep in mind that you need the labs to go along with those classes (namely bio, chem, organic, and physics)
I don't think genetics is a requirement for any school, but it doesn't hurt to have it.
You will be taking the new MCAT, so you should take psych and soc.