Genetics Pathfinder
Cell Biology Animation
Use the "Amino Acids and Protein" and "DNA" sections to watch and read about the processes involved in replicating DNA and producing proteins.
http://www.johnkyrk.com/index.html
DNA from the Beginning
Use the Animation and Problem for Subjects Related to Genes, DNA, RNA, and Protein Synthesis.
University of Utah
Use The Basics and Beyond.
http://learn.genetics.utah.edu/