What would a pedigree look like for klinefelter syndrome?

A pedigree for Klinefelter syndrome, which is a genetic condition caused by the presence of an extra X chromosome in males (47,XXY), would typically show affected males in each generation, often with normal females. The condition is not inherited in a simple Mendelian manner, so affected males usually arise from nondisjunction events during meiOSis in one of the parents. In a pedigree, you might see a representation of affected males (denoted by a different shape or shading) alongside their unaffected siblings. It may also highlight maternal or paternal lineage, showing that the condition can arise sporadically rather than strictly following a hereditary pattern.