| A | B |
|---|
| Natural selection | Mechanism leading to adaptation |
| Adaptation | Change to suit environment |
| antibiotic resistance | example of adaptation |
| mutations | Random changes in DNA base sequence |
| conjugation | formation of tubes and exchange of DNA in bacteria |
| donor | cell which gives the DNA |
| recipient | cell which receives the DNA |
| Plasmid | circular chromosome |
| horizontal gene transmission | Conjugation between different species |
| vertical gene transmission | conjugation between generations |
| Linear | The plasmids have to be made this to get through the tube |
| conjugation tube | Joins donor to recipient |
