Question

Is breast cancer an autosomal dominant trait?

Answer 1

Breast cancer itself is not an autosomal dominant trait but the way the breast cancer happens can be a autosomal dominant trait.

If you develop the breast cancer due to inheriting the breast cancer then yes it's a autosomal dominant trait depending on how you inherited the breast cancer.

BRCA1 and BRCA2 genes are inherited from genes that happen in an autosomal dominant pattern.