University of Arizona
University of Arizona: Blood Types Tutorial
This site from the University of Arizona describes how blood type is passed on from parent to child. The tutorial covers the genetics of the ABO blood groups as well as Rh factor. There are even practice problems and blood type calculators!
Nature Research
Scitable: Gene Inheritance and Transmission
Get an in-depth look at gene inheritance and transmission with this webpage. This site explores genetics beyond Mendel and his peas. Investigate transmission genetics with the following topics gene linkage, variation in gene expression,...
CK-12 Foundation
Ck 12: Life Science: 3.14 Non Mendelian Inheritance
Learn about some examples of inheritance that do not follow Mendelian inheritance rules.