Program from Rutgers University . Designed to help high school students learn molecular genetics by participating in genuine scientific research. Cool stuff! Even if you don't participate, there are some nice resources here for genetics.
The Biology Corner is a resource site for biology and science teachers. It contains a variety of lessons, quizzes, labs, web quests, and information on science topics. You can find lessons related to biology topics in the links listed under "topics" on the sidebar. Topics include: Ecology, Genetics, Anatomy, Cells, Scientific Method, and Evolution. I do not at this time have answer keys for the worksheets posted, as students use this site to access their own homework and assignments.
Scitable is an open online teaching/learning portal combining high quality educational articles authored by editors at NPG with technology-based community features to fuel a global exchange of scientific insights, teaching practices, and study resources. Scitable currently contains articles in the field of genetics, and is intended for college undergraduate faculty and students. Future plans involve extension of Scitable to other fields within the life sciences, as well as to other audiences.