I recently found a great video about DNA and the Human Genome from my PLN on Twitter (Thanks @dmcdonald92). PBS, a great resource for teachers, has a great program "NOVA" that has some excellent video programs for education. "NOVA: Cracking Your Genetic Code" is a great program that explores how having DNA and the Human Genome decoded is leading to some exciting breakthroughs in health and diseases
This is another great, free resource for educators. The program can be viewed online for free.
PBS Teachers - Excellent Resources for Educators
DNA - great resource on DNA from PBS