| Term | Definition |
| DNA | stores and transmits genetic information |
| RNA | involved in expressing DNA stored info |
| transcription | rewriting DNA gene info into mRNA |
| translation | Converting mRNA info into protein |
| nucleotide | monomer of nucleic acids |
| 4 4nitrogen bases in DNA | adenine (A), guanine (G), cytosine (C), Thymine (T) |
| 4 nitrogen bases in RNA | adenine (A), guanine (G), cytosine (C), Uracil (U) |
| DNA Polymerase | enzyme that builds DNA strands |
| ribosome | organelle where proteins are assembled |
| three kinds of RNA | mRNA, rRNA, tRNA |
| deoxyribose | sugar in DNA |
| ribose | sugar in RNA |
| three parts of nucleotide | sugar, phosphate, nitrogen base |
| mutation | change in the DNA code |
| Replication | making an exact copy of DNA |
| codon | group of three nucleotides that codes for one amino acid |
| amino acid | monomer of proteins |