+ wishlist Add to Cart The item has been added Author: W. J. Dickinson D. T. Sullivan Gene-Enzyme Systems in Drosophila (Results and Problems in Cell Differentiation #6) [9783662219423] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 12% 50 - 99 13% 100+ 14% List Price As Low as $54.99 Format: Paperback