TEMPLATE
Y-Linked Pedigree
Y-linked traits are carried on the Y chromosome, which only males have. An affected father passes the trait to all of his sons and none of his daughters. Only males are affected. This fictional example is educational only.
Related templates
Three-Generation Pedigree
Grandparents, parents, and children with a proband.
Autosomal Dominant Pedigree
Trait appears in every generation; one affected parent usually has affected children.
Autosomal Recessive Pedigree
Unaffected carrier parents can have an affected child; the trait may skip generations.