5 doctors weighed in:
What are the chances of inheriting cystic fibrosis if one's parent has the trait?
5 doctors weighed in

David Escobar
Family Medicine
3 doctors agree
In brief: Depends on Both
This depends on whether both parents carry the trait.
If only one parent is a carrier of the gene, then there is no chance of inheriting cystic fibrosis. However, if both parents carry the CF gene, then there is a 25% chance their child will inherit cystic fibrosis.

In brief: Depends on Both
This depends on whether both parents carry the trait.
If only one parent is a carrier of the gene, then there is no chance of inheriting cystic fibrosis. However, if both parents carry the CF gene, then there is a 25% chance their child will inherit cystic fibrosis.
David Escobar
David Escobar
Answer assisted by David Escobar, Medical Student
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Dr. James Ferguson
Pediatrics
In brief: Like hitting lottery
The only way that would happen would be for the baby to get a defective gene from the carrier(50%) and to have a spontaneous mutation from the other parents gene (

In brief: Like hitting lottery
The only way that would happen would be for the baby to get a defective gene from the carrier(50%) and to have a spontaneous mutation from the other parents gene (
Dr. James Ferguson
Dr. James Ferguson
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