Mutations that lead to cancer usually occur in genes that control the cell cycle, and cancer is an example of a mutation in cells. Given these facts, what usually occur in genes that control the cell cycle among the following options:
- Leptospirosis
 - competition
 - A Greek letter
 - a mutation in cells
 - Plant reproduction
 - biological diversity
 - resistance
 - resistance activities


 

    a mutation in cells     