Cloning Various Life-Forms

History of Molecular_cloning and Alternative_splicing

http://www.hhmi.org/biointeractive/dna/animations.html

http://www.ncbi.nlm.nih.gov/books/NBK26887/

http://www.redicecreations.com/article.php?id=17862

http://c-shapes.blogspot.com/2010/06/splice.html