This site, maintained by the Public Broadcasting System (PBS), is a companion to the NOVA television special, Cracking the Code of Life, which chronicles the scientific race to complete the human genome. A Genetic Future Survey asks viewers to offer their opinions on genetic research, and a timeline traces the evolution of an understanding of genes from the early days of Pythagoras to the modern Human Genome Project. Animations provide journeys within the double helix and offer a glimpse into what scientists see as they explore stretches of DNA. A sample section, Sequence for Yourself, illustrates the methods involved in the decoding process. Fragmentation using restriction enzymes is discussed, along with the cloning, detection, and assembly stages. Transcripts of interviews with three key scientists in the field--Francis Collins, Eric Lander, and Craig Venter--reveal the critical nature of balancing curiosity about and fear of genetic determinism. A glossary of key terms supports the text, along with links to additional web sites. There is also a teacher's manual that contains suggestions for instruction and inquiry-based activities for concept extension. (ENC)

Health Science students and Human Services students in a social services career path can gain valuable understanding of genetic structure by exploring simulated sequencing and the structure of chromosomes. Another investigation involves tracing the sources of genetic disorders, a practice which is often the responsibility of health care workers. Students are also exposed to the legal and ethical problems which are often encountered by the health care industry as it struggles with making use of the advances in genetic identification, gene mapping, and genetic manipulation.