Medical Genetics Overview and concepts Proband:an affected individual through whom the family came to the attention of the investigator,also called propositus,index case. Pedigree chart(family tree): Pedigree chart is a shorthand diagram,which show at a glance the relationship of affected relatives to the propositus and to one another. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more informationThis document is produced by trial version of Print2Flash. Visit www.print2flash.com for more information