Cancer is caused by accumulated damage to genes. The substance that causes cancer is called carcinogens.
Answer:
Genetic mutations causing the malfunction or absence of one or more of the regulatory proteins at cell cycle checkpoints can result in the "molecular switch" being turned permanently on, permitting uncontrolled multiplication of the cell, leading to carcinogenesis, or tumor development.
Explanation:
Medicare is a federal system of health insurance for people over 65 years of age and for certain younger people with disabilities.
Medicaid is a federal system of health insurance for those requiring financial assistance.
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