Huntington’s disease pedigree with genotypes (autosomal dominant)

An example figure from the Pedigree generator.

A three-generation pedigree titled Huntington’s disease, with an affected deceased man in generation I, affected people in every generation, Hh or hh written under each person, a key, and the answer key line — A three-generation pedigree of 17 people, starting with an affected man, I-1, marked deceased. Affected men and women appear in every generation, every affected child has an affected parent, and II-5 passes the trait to his son, III-6. Each person’s genotype is written under their number, Hh or hh, and the answer key line is printed under the key.

Edit this figure Download PNG

Editing opens it in Pedigree with these settings, to change anything and copy or download your own.

Answer key

Autosomal dominant inheritance
I-1 Hh, I-2 hh
II-1 hh, II-2 Hh, II-3 hh, II-4 hh, II-5 Hh, II-6 hh, II-7 hh
III-1 Hh, III-2 hh, III-3 Hh, III-4 hh, III-5 hh, III-6 Hh, III-7 hh, III-8 hh

Free to use in your tests, worksheets, slides or anything else. Open source under Apache 2.0. How to reuse our figures

More Pedigree examples

Make your own in Pedigree →