Alberts, Bruce. 2002. Molecular biology of the cell, 4th ed. New York: Garland Science.
Genetic Science Learning Center. 2004. Genetic Disorder Corner. University of Utah. 07 May 2004. http://gslc.genetics.utah.edu/units/disorders/
McCarrick, Pat Milmoe. 1993.Genetic Testing and Genetic Screening. Scope Note 22. National Reference Center for Bioethics Literature, Georgetown University, 1993. Kennedy Institute of Ethics Journal (KIEJ), Reprinted September 1993, 17 p. (Last updated February 2002). 07 May 2004. http://www.georgetown.edu/research/nrcbl/scopenotes/sn22.html
Miller, Kelly. 1999. Genetic Screening. Phil McClean, Professor, Ph.D. Colorado State University, PLSC 431/631 - Intermediate Genetics. 07 May 2004. http://www.ndsu.nodak.edu/instruct/mcclean/plsc431/students99/miller.htm. The mundane by excellent cinematography and an effective cast.