PATHOLOGY

Detailed explanation-1: -Inherited, or genetic, diseases like cystic fibrosis (CF) are passed from parents to their children. This occurs even when neither parent has the disease. For a child to inherit CF, both parents must have an altered gene that causes CF; that is, both parents must be carriers of an altered CF gene.

Detailed explanation-2: -Cystic fibrosis is an example of a recessive disease. That means a person must have a mutation in both copies of the CFTR gene to have CF. If someone has a mutation in only one copy of the CFTR gene and the other copy is normal, he or she does not have CF and is a CF carrier.

Detailed explanation-3: -This type of inheritance is called “autosomal recessive.” Autosomal means that the gene is on one of the first 22 pairs of chromosomes which do not determine gender, so that the disease equally affects males and females.

Detailed explanation-4: -Cystic fibrosis is inherited. This means it is passed down from parent to child through the genes. Your baby inherited a normal CF gene (N) from one parent, and a mutation of a CF gene (C) from the other parent. This means at least one parent (mother or father) is also a CF carrier.