question on mutatuon

my daughter is in the process of multiple sweat test for a diagnosis and just had her blood work done today. I have a thread in newly diagnosed on everything that is going on with her. I guess Im mainly here to ask about gene mutation. from what I have read online about cystic fibrosis is the gene has to come from each parent. first question: if the parent has the gene but no signs/diagnosis of CF is their gene mutated also? second question: with CF if my daughter comes back with a mutated gene, that means she got the gene from us her parents so does that mean we got the gene from our parents?? my daughters uncle is going threw testing and all that too and his all came back negative. my daughters grandfather had blood work done and they told him he didn't have the gene. so if my husbands father doesn't have the gene does that mean that there is no way my husband has the gene to pass to our daughter?? I hope that these questions are not confusing. I am just really in the dark with everything. Her doctors don't want to answer anything until all test results are in. if anyone has any answers I would greatly appreciate a reply :) thank you
Source: Cystic Fibrosis DNA and Mutations Forum - Category: Respiratory Medicine Authors: Tags: DNA and Mutations Source Type: forums