Cancer is a disease that occurs when the cell cycle is no longer regulated, and p16 is a regulator of the cell division cycle. Given these facts, p16 is an example of what type of thing that causes cancer when it stops functiong properly among the following options:
- Toxins
 - edema
 - gene
 - ferns
 - CO 2
 - PDAs
 - HIV
 - albino


 

   gene      