I am going over the genetics part of the bio section and I have a Kaplan MCAT book (Newest edition) thanks to my bf, and also my Kaplan OAT book. And the OAT goes over Holliday Model and a lot on Chromosomal Abnormality more (actually MCAT doesn't even have it in there book) and I was really wondering should I still go over it? The Kaplan OAT Bio section seems to go over a lot of things I wouldn't imagine it testing on.