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DNA Forensics and Color Pigments
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Ionescu, Mircea Duyn, Myla Van |
| Copyright Year | 2013 |
| Description | Students perform DNA forensics using food coloring to enhance their understanding of DNA fingerprinting, restriction enzymes, genotyping and DNA gel electrophoresis. 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") on strips of filter paper and then place one paper strip end in water. As water travels along the paper strips, students observe the pigments that compose the paint decompose into their color components. This is an example of the chromatography concept applied to DNA forensics, with the pigments in the paint that define the color being analogous to DNA fragments of different lengths. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | University of Houston Regents of The University of Colorado |
| Subject Keyword | Biology Enzyme Forensics Genetics DNA Food Coloring Chromatography Inheritance Pigment Electrophoresis Restriction Enzyme Biomedical Fingerprinting |
| Content Type | Text |
| Time Required | PT45M |
| Education Level | Class IX Class X Class XI Class XII |
| Pedagogy | Experimental Activity |
| Resource Type | Hands-on |
| Subject | Biology |
