| A | B |
|---|
| DNA | hereditary material that controls all the activities of the cell. |
| Nucleotide | four subunits that make up DNA |
| Adenine | Nucleic acid that bonds with thymine |
| Thymine | Nucleic acid that bonds with Adenine |
| Guanine | Nucleic acid that bonds with Cytosine |
| Cytosine | Nucleic acid that bonds with Guanine |
| Rosalind Franklin | Chemist who created images of DNA using x-rays. |
| Watson & Crick | Credited with creating the first model of DNA, which helped discover how DNA was copied. |
| Ribosome | Organelle that produces/builds proteins. |
| Mutation | A change in DNA sequence. |
| Mutagen | A substance which causes a change in DNA sequence. |
| Pedigree | a diagram of family history used for tracing a trait through several generations |
| Sex-linked trait | Trait carried on the "X" chromosome. |
| Carrier | Heterozygous organism that carries a defective recessive gene. |
