This learning activity is designed to help students explore the structure of the nucleotides in DNA. Students work with annotated molecular structures of guanine, cytosine, adenine, and thymine to identify the parts of the nucleotide and learn about the four different bases in DNA.

This package includes the following items:

1). Molecular structure files containing guanine and cytosine, adenine and thymine, and double-stranded DNA.

2). Instructions

3). Worksheets - these can also be used without the molecular models or software.

4). An answer key

5). User-friendly molecular modeling software (Cn3D 4.1).

At only $3.99, the worksheets alone are a bargain. Download the package and get started today! We have versions for both Mac OSX and Windows XP or Vista.