The BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a person has a mutation in the BRCA genes that makes the proteins less able to function. What is the result of a BRCA mutation?
The person is more likely to develop cancer if other DNA in the cell mutates.
The person is less likely to develop cancer unless the BRCA region is methylated.
The person is less likely to develop cancer because the BRCA gene will inhibit the cell cycle checkpoints.
The person is more likely to develop cancer because the BRCA gene promotes an increased rate for mitosis.
The correct answer is: The person is more likely to develop cancer if other DNA in the cell mutates.
Mutations in the BRCA genes lead to a reduced ability to repair DNA damage. This increases the likelihood of additional mutations occurring in other genes, particularly those involved in regulating cell growth and division, which can eventually lead to the development of cancer.