Most hereditary cancer syndromes are inherited in autosomal dominant fashion.
Dominant inheritance occurs when only one copy of an allele is required for a particular trait to be expressed (phenotype). In autosomal dominant inheritance, multiple generations express the traits, with no skipped generations (assuming complete penetrance).
![Autosomal Dominant Inheritance](https://webarchive.library.unt.edu/eot2008/20081006122957im_/http://www.cancer.gov/images/Documents/a3a0ee76-1bc5-4490-aeaa-2248702c668f/cancer41.jpg)
< Previous | Index | Next Slide > |