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A member asked:
What are the chances of passing on the cystic fibrosis gene if only one parent is a carrier? other parent not a carrier.
2 doctors weighed in across 2 answers
50-50: One half of offspring will be carriers and one half will not be carriers. No offspring will be afflicted. Thanks for trusting HealthTap!
Answered 3/16/2017
3.5k views
Flip a coin: Parents give only one gene of every gene pair they have to their offspring. The non-carrier parent will only pass a normal (non-CF) gene since that is all they have. The carrier parent can pass either a CF or a normal gene. Each conception is essentially a flip of a coin (2 outcomes).You could have all non-carrier (normal), all carrier or half normal half carrier offspring.
Answered 3/16/2017
765 views
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