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

Question

Quizplus · Accepted Answer

BRCA1 and BRCA2 are considered to be tumor suppressor genes because their normal products participate in repairing DNA damage. Mutations in these genes can lead to an increased risk of developing certain cancers, particularly breast and ovarian cancer.

BRCA1 and BRCA2 Are Considered to Be Tumor Suppressor Genes