The exam has two major components. In the first (and largest) I have spent a great deal of time writing a mock grant proposal, which outlines a major research project and is designed to ask the NIH (National Institutes of Health) for tons of funding money. During the exam I will sit in a room in front of five professors, and they will ask me to defend the ideas that I have in the proposal, and answer numerous questions related to the biology and significance of the proposal.
The second part is essentially a basic knowledge test, where the professors ask me any sort of biology-related questions they want, to test the depth and breadth of my scientific knowledge and critical thinking skills.
For this reason, I have been reading in earnest the book: Molecular Biology of the Cell, which is the definitive text with regards to the kind of research that I am doing. I plan on reading the entire thing before the exam. It is over 1700 pages. Therefore I read it a lot.
In lab:
In church:
At the gym:
And in bed:
I am working hard because I really really do not want to fail. If you pass your orals, you go on, do more research, and graduate with your Ph.D. If you fail, you are awarded a Masters, and invited to leave the university.
So now I am going to go study. Wish me the best!