Assertion: cystic fibrosis's child | /r/HasAspect | a 50% chance
Facets:
Source sentences:
text: If one parent has CF and the other parent is a carrier, each child born to those parents has a 50% chance of having CF and a 100% chance of being a carrier.
text: If only one parent has a mutation, is a carrier for CF, and the other parent has two normal working copies of the CFTR gene, the children of that couple will each have a 50 percent chance (1/2) of being an unaffected carrier of CF.
text: When both parents are carriers there is a 25% chance in every pregnancy that the child will have CF, a 25% chance that the child will have two normal CFTR genes and a 50% chance that the child will be a carrier (figure 2).
text: This means if both parents are carriers of the gene that causes CF, a child has a 1 in 4 (25%) chance of having cystic fibrosis, a 50% chance of inheriting the CF carrier gene, and a 25% chance of not inheriting the gene.
text: If one parent has CF or carries a CF gene, and the other parent does not, then their child has a 50 percent chance of being a carrier of the CF gene, but may not exhibit symptoms.
text: If, however, one parent has two defective genes and the other parent has one defective gene, a child has a 50 percent chance of inheriting the condition [source: