What are the chances that her daughters will be carriers?

To determine the chances that her daughters will be carriers, we need to consider the inheritance pattern of the gene in question. If the trait is autosomal recessive, carrier mothers pass on one copy of the gene to each daughter, giving her a 50% chance of being a carrier. If the trait is X-linked, the probability will depend on the mother's genotype and whether the father is affected or a carrier. Without specific genetic information, it's difficult to provide a precise percentage.