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Definition of BRCA1 breast cancer susceptibility gene

BRCA1 breast cancer susceptibility gene: A mutated (changed) version of the BRCA1 gene that makes a person susceptible to developing breast cancer. See: BRCA1.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=2523
Last Editorial Review: 10/9/2012

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