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- it is possible for an affected individual to have unaffected parents
- the trait can skip generations
- all of the offspring of two affected parents are affected
- it's expressed equally in males and females
- affects different duct systems, primarily the lungs (bronchial tubes), the GI tract,
- the pancreas, reproductive track (in men)
- thickened mucus in
- the lungs results in persistent infections, and is ultimately lethal
- median life
- expectancy is 37 years, and increasing
Autosomal Dominant Traits
- trait does not skip generations.
- Every affected individual has at least one affected parent.
- Each sex is affected equally
- the affected individuals are usually heterozygous, so they pass the trait to about half of their offspring.