Lab-Aids: Individual DNA and Nucleic Acid Modeling Kit
This kit allows a student to construct a model of an 8-rung ladder segment of a DNA molecule and then build a molecular model of the basic components of the nucleotides of RNA and DNA. This Lab-Aid combines the features of the Molecular Model of DNA and its Replication (LAB-AIDS‚® No.71) and Nucleic Acid Molecular Structure (LAB-AIDS‚® No. 513) for an individual student. All components are reusable and the nucleotides (when using more than one kit) can be linked together to form a DNA model. A set of instructions for constructing the models is included with each packet. This activity is an excellent review of these concepts.
Scientific Concepts:
Individualize DNA model
Build a molecular model of basic components of the nucleotides of RNA and DNA
Content List:
1Student Instruction Manual
4Adenine (A) (orange)
49Covalent plastic bonds
4Cytosine (C) (blue)
16Deoxyribose sugar groups (black)
4Guanine (G) (yellow)
8Hydrogen bonds
16Phosphate groups (white tubes)
19Single electron hydrogen atoms (white)
10Carbon (black), tetrahedral centers
5Nitrogen (red), tetrahedral centers
11Oxygen (blue), tetrahedral centers
1Phosphorous (purple), tetrahedral centers
4Thymine (T) (green), tetrahedral centers
Classroom Planning:
To complete this kit requires two to three ~50-minute class periods