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#Question id: 4319


Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#Part-A Aptitude & General Biotechnology
  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.


Answer:- Option(s): 1


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