| A | B |
|---|
| selective breeding | Crossing organisms with desirable characteristics to produce offspring with desirable characteristics |
| hybridization | Crossing two genetically different but related species |
| hybrid | An organism that has a combination of traits from both parents |
| hybrid vigor | The ability of hybrids to grow bigger and faster than their parents |
| inbreeding | The crossing of plants and animals that possess similar sets of genes |
| genetic engineering | Transferring genes from one organism to another |
| plasmid | Ringlike form of DNA found in bacteria |
| bacteria | Organisms used by scientists in genetic engineering |
| insulin | Helps people with diabete |
| ice-minus bacteria | Slows the formation of frost on plants |
| vaccine | Triggers the production of antibodies |
| interferon | Helps fight viruses |
| human growth hormone | Helps children grow to their full height |
| mule | Example of hybridization |
| purebred racehorses | Example of inbreeding |
