| Term | Definition |
| Nitrogen Base | is a carbon ring structure that contains one or more atoms of nitrogen |
| Double Helix | a shape that looks like a twisted ladder. |
| DNA replication | is when the DNA molecule is copied |
| Messenger RNA | brings information from the DNA in the nucleus to the cytoplasm |
| Transfer RNA | transports amino acids to the ribosome to be assembled into a protein |
| Transcription | when you make an RNA copy from a DNA strand |
| Codon | is a set of three nitrogen bases on mRNA that codes for an amino acid |
| Translation | is the process of converting the information in a sequence of nitrogen bases in mRNA into a sequence of amino acids that make a protein |
| Mutation | are any changes in the DNA sequence that also changes the protein it codes for |
| Point mutation | is a change in a single base pair in DNA |
| Frameshift mutation | is a mutation in which a single base is added or deleted from DNA |
| Chromosomal mutation | is when whole sections of the chromosome are lost during mitosis or meiosis |
| Mutagen | anything that can cause a change in the DNA |