Bill Nye explores the chromosomal world of DNA, discovering that everything from hair and eye color to whether or not you can roll your tongue are in the gnes you inherited from your mother and father.

Originally an episode of the television program Bill Nye, the science guy. Features: fully indexed "chapters" correlated to National Science Standards; interactive glossaries and quizzes; bonus footage of never-before-seen segments, interviews, and demos; on-disk implementation guide.