Marcia tested positive for the genetic mutation for breast cancer. What is the highest probability she will develop it?
A) 25%
B) 40%
C) 50%
D) 75%

Question

Quizplus · Accepted Answer

A positive test for the genetic mutation for breast cancer means there is a 50% chance she will develop it. This is because the mutation is inherited in an autosomal dominant pattern, meaning there is a 50-50 chance of inheriting the mutated gene from one affected parent. However, it is important to note that not all individuals with the mutation will develop breast cancer, and other factors such as lifestyle and environmental factors can also play a role in the development of the disease.

Marcia Tested Positive for the Genetic Mutation for Breast Cancer