- AIDS: acquired immune deficiency syndrome
- AIDS Symptoms: Usually rare infections become fatal
- AZT: First treatment to slow reproduction of AIDS
- Control: standard against which the experimental factors are compared and possibly changed
- Genetic Engineering: manipulating DNA in cells to improve health, crops…
- HGH: controls growth-made in lab by inserting DNA sequence into bacteria
- HIV: causative infections agent that attacks the immune cells & continually evolves by mutations in DNA (similar to flu virus)