A free and extremely useful visualization tool to observe RNA structure. Nice features include ability to view in stereo and ability to select and deselect nucleotides with ease.
Open-source program that is available free for a trial period. Students can continue to use the application on an extended basis. Great at producing high-quality images of nucleic acids as well as viewing RNA structure. Newer versions are becoming increasing easy to use.
Two incredibly useful programs which help predict secondary structures of pdb files.