Answer:
The correct answer is : mitosis.
Step-by-step explanation:
Malignant growth or cancer is basically an abnormality of mitosis - the ordinary 'checkpoints' directing mitosis are ignored by the tumor cell. Disease starts when a single cell is altered, or changed over from an ordinary cell to a malignant growth cell.
Mitosis is firmly constrained by the qualities inside each cell. If genes did not control or perform their work properly occurs in only a single cell, it can reproduce itself to make new cells that are likewise uncontrollable and leads to tumor or cancer.