| DNA source |
| Heredity source |
| Hereditary source |
| Hereditary sources |
| Interbreeding data |
| Reproductive stock |
| Hereditary collection |
| Makings of a population |
| All the DNA in a population |
| Natural selection affects it |
| A large one indicates diversity |
| Total of interest to biologists |
| A small one makes extinction more likely |
| Collection affected by natural selection |