Which statement made by a parent indicates an understanding about the genetic transmission of cystic fibrosis (CF)?
A) "Only one parent carries the cystic fibrosis gene."
B) "Both parents are carriers of the cystic fibrosis gene."
C) "The presence of the disease is most likely the result of a genetic mutation."
D) "The mother is usually the carrier of the cystic fibrosis gene."

Question

Quizplus · Accepted Answer

Cystic fibrosis follows a pattern of autosomal recessive trAnswermission.Both parents must be carriers of the gene for the disease to be trAnswermitted to the child.If both parents carry the CF gene,each pregnancy has a 25% chance of producing a CF-affected child.The disease will not be present if only one parent is a carrier of the cystic fibrosis gene.Cystic fibrosis is known to have a definite pattern of trAnswermission.It is trAnswermitted as an autosomal recessive trait.A carrier parent can trAnswermit the carrier gene to the child.The disease is present when the carrier gene is trAnswermitted from both parents.

Which Statement Made by a Parent Indicates an Understanding About