FICTION:
Brave New World by Aldous Huxley: involves genetic engerneering
A Clockwork Orange by Anthony Burgess: involves aversion therapy
Flowers For Algernon by Daniel Keys: involves the transition from a man with a low IQ gaining a high IQ from experimental surgery (i did my english c/w on this book, i love it!)
NON-FICTION:
The Double Helix by James Watson: autobiographical and enjoyable!
The Selfish Gene by Richard Dawkins: a biology must- read
The Mating Mind by Geoffry Miller: a slightly off track look at evolution.