This lab is a spinoff of the tried and true onion root tip mitosis lab that so many people do. In this version however, students ask their own research question, and design their own procedure and hypothesis, raising this lab to "open inquiry" for AP Bio students, though the rigor of the lab could certainly be used for honors freshmen as well if they are well prepared. It also gives students the chance to use chi-square analysis. This product includes: A full, lightly scaffolded lab report for