If you mother has a single copy of a harmful BRCA gene,what are the chances you inherited the harmful BRCA allele from her?

Question

Quizplus · Accepted Answer

If the mother has a single copy of the harmful BRCA gene, then she is a carrier and has one normal allele and one harmful allele. Each of her children has a 50% chance of inheriting the harmful BRCA allele from her. Therefore, the chance of inheriting the harmful allele is 50%.

If You Mother Has a Single Copy of a Harmful