BRCA1 and BRCA2 Are Considered to Be Tumor Suppressor Genes

question 1

Multiple Choice

BRCA1 and BRCA2 are considered to be tumor suppressor genes because ________.

• A) they prevent infection by tumor viruses that cause cancer
• B) their normal products participate in repair of DNA damage
• C) the mutant forms of either one of these prevent breast cancer
• D) the normal genes make estrogen receptors
• E) they block penetration of breast cells by chemical carcinogens

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