Made of certain proteins. Directs the timing and sequence of events in the cell cycle.

If something goes wrong, Cells lose control of cell cycle

A disease caused by a disruption to the cell cycle leading to uncontrolled cell division.

Masses of tissue made of cells. Benign Tumor

Abnormal masses of essentially normal cells.

Stay at original site of growth. Malignant Tumors

Mass of cancerous cellsDisplace normal tissue as it grows.Can Spread to surrounding tissue.

Metastasis

Environmental: Caused from the surroundingsExample= cigarette smoke, pollution, UV (sun)

Genetic Factor: mutation found in the genes.Example= BRCA1 or BRCA2 gene

Radiation Therapy and Chemotherapy

Both disrupt cell division.