| A | B |
| 3 mRNA nucleotides | codon |
| 3 tRNA nucleotides | anti-codon |
| exon | modified mRNA with the gene code |
| intron | mRNA removed from the gene code |
| deletion mutation | mutation where part of the chromosome is lost |
| mutation | a change in nucleotide sequence |
| inversion | portion of a chromosome is broken off an reattaches itself in reverse |
| transcription | turning DNA into mRNA |
| point mutation | one nucleotide is randomly changed |
| where translation occurs | at the ribosome |
| translocation | part of a chromosome breaks off and attaches to a non homologue |
| frameshift mutation | disrupts all of the codons in a gene |
| where elongation occurs | cytoplasm |
| a gene that can cause cancer | oncogene |
| an environmental factor that cause cancerous growth | mutagen |