WebMD
Medicine Net: Genetic Disorder Information on Achondroplasia
Authored by doctors, read this comprehensive overview of Achondroplasia including description, causes, symptoms, diagnosis, treatment, prognosis, prevention, genetic implications to dwarfism.
Other
University of Illinois Chicago: Human Genetics: Mendelian Inheritance
Great genetics site with a very good section on Punnett squares.
CK-12 Foundation
Ck 12: Biology: Mendelian Inheritance in Humans
[Free Registration/Login may be required to access all resource tools.] Covers Mendelian inheritance of autosomal and sex-linked traits in humans.
CK-12 Foundation
Ck 12: Life Science: Punnett Squares
[Free Registration/Login may be required to access all resource tools.] A Punnett square is a special tool derived from the laws of probability. It is used to predict the offspring from a cross, or mating between two parents. Learn more...
CK-12 Foundation
Ck 12: Life Science: 3.16 Genetic Disorders
Learn about some human genetic disorders.
Washington State University
Washington State University: Learning Mendelian Genetics
A decent lab activity which could be used to introduce the concept of dominance and autosomal dominance. This site provides a coin toss activity to learn about Mendelian Genetics.
Other
Polycystic Kidney Disease: Autosomal Dominant Pkd
A good example of an autosomal dominant disorder occurring in polycystic kidney disease. Also supplies a little background definition to the process.