Hold up a videotape and lead a discussion about the similarities and differences between DNA and the videotape. Have the participants list similarities and differences between DNA and videotape. But DNA is more like videotape than a blueprint.
Videotape carries information - electronic information.
The information is encoded. The information has to be translated. We use a VCR and a TV to translate the information on a videotape. The information on a videotape produces sounds and pictures - scenes. We can make copies of a videotape.