I need pictures of molecular structures like Adenine to draw 4 homework
search google images using the name of the structures you have to draw...
http://images.google.com/images?&num=10&hl=en&btnG=Google+Search&lr=&as_ft=i&as_qdr=all&as_dt=i&as_rights=&safe=off&ie=UTF-8&oe=UTF-8&sa=N&tab=wi&q=adenine