Episode Rankings
- #1 Fan Favorite


Every episode of DNA Season 1 ranked from best to worst. Discover the Best Episodes of DNA Season 1!
DNA is a 5 part PBS documentary special which presents a comprehensive history of DNA science - from the discovery of the double helix structure to the mapping of the human genome to the latest
"The Secret of Life" is the best rated episode of "DNA" season 1. It scored 8.6/10 based on 10 votes. Directed by Unknown and written by Unknown, it aired on 4/12/2003. This episode is rated 8.6 points higher than the second-best, "Playing God".