| A | B |
|---|
| DNA | Genetic information molecule |
| Adenine | Nitrogen base abbreviated "A" |
| Thymine | Nitrogen base abbreviated "T" |
| Cytosine | Nitrogen base abbreviated "C" |
| Guanine | Nitrogen base abbreviated "G" |
| Nucleotide | Monomer of DNA |
| Phosphate | Part of DNA "backbone"; alternates with deoxyribose |
| Deoxyribose | Part of DNA "backbone"; alternates with phosphate |
| Nitrogen Base | Makes up the "steps" of the ladder |
| Helix | Spiral shape |
| Double Helix | Two spirals, wrapped around each other |
| DNA Replication | The process by which DNA duplicates itself |
| Helicase | Enzyme that "unzips" DNA |
| DNA Polymerase | Enzyme that duplicates (makes polymers of) DNA |
