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!
Palomar Community College District
Human Abo Blood Types
Use this review to introduce the human ABO system and how blood types are inherited.
Palomar Community College District
Flashcards for Human Blood Components
Use these cards for a quick review of the facts related to the components of blood.
Palomar Community College District
Flashcards for Human Blood Typing
These cards provide a quick, interactive review of ABO, Rh blood typing science. Good for test preparation.
Palomar Community College District
Palomar College: Table of Blood Type Frequencies
This site includes a listing of United States frequencies of the various human blood groups.
University of Utah
University of Utah: Learn Genetics: Genes and Blood Type
For a concise summary of human blood types, this is a great resource. Discussion includes the topics of genotype, phenotype and agglutinins. There is also a nice pictorial table that summarizes the three blood types.