Symposium - second vignette - Deciphering Nature's Alphabet - research with DNA; Rich Roberts speaks on coding the information from DNA, alternative RNA splicing with Drosophila; Video on developing genetic tools, creating tests for genetic diseases; Horace Freeland Judson speaks about ideological consequences of the human genome project; Footage of press conference - Francis Collins speaks about the completion and availability of the Human Genome Proejct.