For the kinesthetic learners I recommend realia in the form of a large-scale model of the DNA Helix for the explanation of the scientific background.
For the visual and auditory learners I recommend such videos as the following:
Discovery Magazine: Genetics
. Videotape. Discovery Communications, Inc., 1997. 26 minutes.
. Videotape. Films for the Humanities and the Sciences, 1998. 107 minutes.
Several past issues of the Science Times section of
The New York Times
should also be available for perusal.