| A | B |
| Dna | Controls activites of the cell. |
| nucleotide | A subunit of DNA consisting of a sugar, phosphate and one base pair. |
| Adenine | A base that pairs with thymine. |
| Thymine | A base that pairs with adenine. |
| Cytosine | A base that pairs with guanine. |
| Guanine | A base that pairs with cytosine. |
| Ribosome | An organelle that assembles protein. |
| Mutation | A change in the order of the bases in an organisms DNA. |
| Mutagen | Anything that can damage or cause a change in an organisms DNA. |
| Pedigree | A diagram of family history used to trace a trait through several generations. |
| TACGAAT Complement | The complementary strand for the base sequence ATGCTTA |
| Deletion | A change in DNA in which one base pairs have been omitted. |
| Insertion | A change in DNA in which one or more base pairs have been added. |
| Substitution | A change in DNA in which a base pair is replaced be another base pair. |
| Incomplete Dominance | When both allels for a trait have their own degree of influence. |
| Sickle cell anemia | A genetic disorder in which the red blood cell is deformed . |