Question

What type of gene cues cystic fibrosis

Answer 1

Cystic fibrosis is a hereditary disorder affecting the exocrine glands $\rightarrow$ results in the production of abnormally thick mucous $\rightarrow$ blockage of the pancreatic ducts,intestines,and the bronchi $\rightarrow$ respiratory infection

Cystic fibrosis is a genetic or hereditary disease.

*The gene responsible for the cystic fibrosis is defective CF gene.

*The people with Cystic fibrosis have inherited two copies of defective CF gene.ie one copy from each parent.Here in this case both the parents must have atleast one copy of defective CF gene.

*If people with only one copy of defective CF gene are called as carriers,They dont have the disease but they will act as carrier,means he/she has inherited a genetic trait or mutation but displays no symptoms of the disease.

*Any way the carriers of the cystic fibrosis will not exhibit any symptoms,but can pass the non-functioning gene on to their children.

*If in case each time two CF carriers have a child,the chances of having a child with cystic fibrosis is 25% (1 in 4 child may present cystic fibrosis).

*The defective CF gene having an abnormality called as mutation/gene mutation