Genes and Inherited Diseases

How is it that someone who has never smoked a cigarette could find themselves diagnosed with lung cancer at 40, while such rock and roll luminaries as Ozzy Osbourne and Keith Richards continue to smoke, drink and fall out of trees with barely a scratch to show for it?

The answer may very well lie in our genes. But how much of what happens to us is nature or nurture? We untangle these issues with Dr. Maude Phipps, a human genetics professor from Monash University and who is actively involved in the Human Genome Organisation.