Identify the lead to and effect relationship of smoking and lung cancer?

While you smoke you are taking in several pollutants. These pollutants can interfere near the cell cycle which is a cylce that regulates cell growth and replication. During the cell cylce there are checkpoints or roadblocks that stop the cell cycle to check and see if the cell is growing properly. This is adjectives regulated by DNA. When you consume pollutants the DNA that regulates the cell cylce and checkpoints can be damaged resulting within rapid growth near out any checkpoints. The rapid growth of cell becomes a tumor which is cancer.