| A | B |
|---|
| Vaccine | A substance prepared from killed or weakened microorganisms that is entroduced into the body to produce immunity |
| Virulent | Able to cause disease |
| Transformation | The transfering of genetic material from one organism to another |
| Bacteriophage | A virus that attacks bacteria |
| Nucleotides | The subunits of DNA. Each nucleotide contains a phosphate group, a carbon 5 molocule and a nitrogen base. |
| Deoxyribose | The 5carbon sugar that serves as part of a nucleotide |
| Adenine, Guanine, Thymine, Cytosine | Different types of nucleotides in DNA |
| Purines | Large molecules with 2 rings of carbon and nitrogen atoms. |
| Pyrimidines | Nitrogen bases with only one ring of cabon and nitrogen atoms. |
| Base Pairing rules | The suggestion that the precice arrangement of nucleotides in a DNA molecule specifies genes. |
| Double Helix | The configuration of DNA in tree dimentional space. |
| Complimentary | The idea that in a DNA molecule one certain molecules can connect to certain molecules. ex. Adednine(A) can only form bonds with Thymine(T) in DNA |
| Replication | The way new DNA is made |
| Helicases | Enzimes that brake up the bonds in DNA separating the helixes. |
| Replication Fork | The point at which a double helix separates |
| DNA polymeases | Enzimes that add nucleotides to the exposed bases after replication |
| introns | Long segments of nucleotides that contain no gentic coding information |
| exons | The nucleotide segments that code for amino acids |
| multigene families | Clusters of identical sequences |
| Transposons | Genes with the ability to move from one location to another |
