| A | B |
|---|
| HIV | destroys the immune system |
| gene therapy | introducing "healthy" genes into people with hereditary disorders |
| West Nile virus | emerging disease affecting birds, horses, & humans |
| Human Genome Project | sequencing the entire contents on a human cell's chromosomes |
| cancer | breakdown of the mechanism that controls cell division |
| cystic fibrosis | buildup of thick mucus in many organs |
| mad cow disease | caused by eating the body parts of infected animals |
| conservation biologist | work to balance need for people's growing need for land & preservation of the environment |
| genetic engineering | used to develop plants resistant to herbicides or poisonous pests |
| AIDS | fatal disease caused by HIV |
