TEMPLATE
Twins Pedigree
Twins are drawn with a horizontal bar above the pair. Monozygotic (identical) twins get an MZ label and a single connection bar; dizygotic (fraternal) twins get a DZ label with two branch lines to the bar. This editable example shows an older sibling, an MZ pair, and a DZ pair in one family.
Related templates
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.
Mitochondrial Inheritance Pedigree
Only mothers pass the trait; all children of an affected mother are affected.