Lab-Aids: Molecular Model of DNA and its Replication Kit
This basic introduction to the double helix model of DNA uses simple components developed exclusively by LAB-AIDS‚®. Those unique components include:‚
- Double nitrogen pyrimidine bases are constructed proportionately larger in diameter than the single nitrogen purine bases
- Bases are linked by a unique hydrogen bond
- The deoxyribose sugar is pentagon-shaped, its actual structure
Twelve eight-rung models can be constructed with each kit. Or, attach individual models together to form a giant double helix model that will be more than nine feet long! Includes 30 student worksheets, 1 instruction manual, and 12 packets of color-coded components.
Scientific Concepts:
- Build a segment of the DNA molecule and see what a double helix is like
- Model can be "unzipped" allowing for replication of DNA segment
Content List:
- 1 Teacher's Guide
- 36 Student Worksheets and Guides
- 16 Deoxyribose-sugar groups-black linkage
- 8 Hydrogen bonds opaque rods
- 8 Nitrogen (purine) bases
- 8 Nitrogen (pyrimidine) bases
- 16 Phosphate groups white tubes
- 12 Color-coded components packets containing: 4 Adenine (A) orange tubes, 4 Cytosine (C) blue tubes, 4 Guanine (G) yellow tubes, 4 Thymine (T) green tubes
Classroom Planning:
- To complete this kit requires one ~50-minute class period
- Number of students: 36
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