Season 3, Episode 19 The Genetic Chance
First Aired: June 20, 1976
"The Genetic Chance" focuses on hemophilia, a hereditary blood disease that is transmitted through female chromosomes but only affects males.
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- Premiered: March 3, 1974
- Rating: None
- Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)