Women Can Inherit Alleles of a Gene Called BRCA1 That

Multiple Choice

Women can inherit alleles of a gene called BRCA1 that puts them at higher risk for breast cancer.The alleles associated with elevated cancer risk are dominant.Of the genotypes listed below,which carries the lowest genetic risk of developing breast cancer?

A) BB
B) Bb
C) bb
D) Bb and bb
E) All of these genotypes carry equal risk.