Teach Engineering
DNA Forensics and Color Pigments
Use food coloring in electrophoresis. The last segment in a four-part series mimics DNA fingerprinting by using chromatography. Teams conduct chromatography on food coloring to find colors that use similar pigmentation in their makeup.
TeachEngineering
Teach Engineering: Dna Forensics and Color Pigments
Students perform DNA forensics using food coloring to enhance their understanding of DNA fingerprinting, restriction enzymes, genotyping and DNA gel electrophoresis. They place small drops of different food coloring ("water-based paint")...
PBS
Pbs Teachers: Scientific American: Dragon Science: Food for Thought
Investigate how geneticists use selective breeding to capitalize on hybrid vigor by using colored chips to represent traits in succeeding generations. Use Explain why farmers must buy new hybrid seed each year.
PBS
Pbs Teachers: Harvest of Fear
Research and debate the arguments for and against the use of genetically modified foods.