| The diagram shows the inheritance of a form of breast cancer associated with the presence of just one allele of the autosomal gene BRCA 1. |
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| What is the probability that the woman X inherits the BRCA 1 allele associated with breast cancer? |
A) 0.00
B) 0.25
C) 0.50
D) 1.00
Correct Answer: A
Solution :
Woman X will never inherit the BRCA 1 allele since her father has inherited only normal genes from his parents.
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