You are presented with the question "mutations that occur in genes that control the cell cycle lead to what?" and the following answer choices: 
- cigarettes
 - competition
 - leukemia
 - PDAs
 - anemia
 - resistance
 - illness
 - fever

Now knowing that mutations that lead to cancer usually occur in genes that control the cell cycle and leukemias are cancers of the blood, choose the best answer.


 

   leukemia      