See the inheritance pattern, then make your own
Every teaching page begins with a rendered, hand-checked example and the rule it demonstrates.
pedigree chart
A pedigree chart uses standardized shapes, fills, and descent lines to show a trait across generations.
Pedigree chartautosomal dominant pedigree
See the vertical pattern expected when one altered autosomal allele is sufficient to express a trait.
Pedigree chartautosomal recessive pedigree
See how unaffected carrier parents can have an affected child when two altered autosomal alleles are required.
Pedigree chartX-linked recessive pedigree
See the characteristic pattern of affected males, carrier females, and no father-to-son transmission.
Pedigree charthow to read a pedigree chart
Read sex, affected status, partners, children, generations, and the proband in the standard order.
Pedigree chartpedigree practice problems
Practice identifying inheritance patterns from a rendered family rather than an abstract text-only question.
Pedigree chartgenetic pedigree chart
Map a genetic trait through partners, sibling groups, carriers, affected relatives, and an identified proband.
Pedigree charthorse pedigree chart
Lay out a horse’s sire and dam lines across multiple generations in a clean lineage chart.
Pedigree chartdog pedigree generator
Create a readable dog lineage chart from the animal, sire, dam, grandparents, and kennel names you provide.
Phylogenetic treephylogenetic tree maker
Turn taxa, sister groups, clades, branch lengths, and support values into a rooted phylogenetic tree.
Phylogenetic treecladogram maker
Build a branching cladogram that emphasizes shared ancestry and nested groups without implying a linear ladder.