Needless to say, there are many problems with the very concept of making a dinosaur out of a chicken. For one, dinosaurs, as a group, are defined by only a few characteristics: a hole in their hip socket, some limb bone flanges, and other minor anatomical features. Changing chicken DNA won't produce those traits, because chickens already have them. A chicken, like all birds, is already a dinosaur. Getting rid of its feathers or giving it teeth won't make it more of a dinosaur than it already is.