| A | B |
|---|
| virulent | able to cause disease |
| transformation | change in phenotype by taking up foreign DNA |
| bacteriophage | virus that attacks bacteria |
| double helix | shape of DNA |
| nucleotide | subunits that make up DNA |
| deoxyribose | sugar in DNA nucleotide |
| complementary | sequence of bases on one strand determines the other |
| DNA replication | process of making a copy of DNA |
| DNA helicase | enzymes that unzip DNA |
| Replication fork | place where DNA double helix separates |
| DNA polymerase | enzymes that add nucleotides during replication |
| Griffith | bacterial transformation to prove DNA is genetic material |
| Avery | enzyme experiments to prove DNA is genetic material |
| Hershey and Chase | DNA of viruses is genetic material, not protein |
| Watson and Crick | proposed double helix structure |
| Chargaff | base pairing rules |
| adenine and guanine | purines |
| thymine and cytosine | pyrimidines |
| adenine pairs with | thymine |
| guanine pairs with | cytosine |
