When someone smokes cigarettes and drinks three alcoholic beverages a day,he or she is contributing to his or her cancer risk via

Question

Quizplus · Accepted Answer

Cigarettes and alcohol contribute to cancer risk by promoting abnormal cell growth in cells that are already mutated.Initiation is the stage in which the DNA in a normal cell is mutated.Progression is the stage in which the abnormal cells spread outside their original location.Metastasis is the spread of cancer to secondary sites.The DNA of the cell undergoes mutation in the initiation stage of carcinogenesis.Promotion is the second stage,in which abnormal cell growth occurs.Progression is the third stage,in which cancer cells spread beyond their original location.Metastasis is formation of cancer in secondary sites.

When Someone Smokes Cigarettes and Drinks Three Alcoholic Beverages a Day,he