I'm not sure if during the course you had suggested a certain look, since it seems that many are using the same concept as each other. Anyway, I wanted to present something a bit more unique. My Idea is to make the human figure out of a pair of chromosomes. I understand that chromosome 22 is the second smallest, but I took a bit of artistic freedom to make it a bit longer so the it looks like a human. :) Also, in my logo, I am representing the deletion of q11.2. (I'm not clear if this deletion occurs on both pairs or not. I can always replicate the deletion on both of the pair.
Your feedback and suggestion for any revision would be greatly appreciated.