Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

تمرين 13

Imagine III-1 is expecting a child. The couple decides to go to genetic counseling to determine the likelihood of their child having cystic fibrosis. Although expensive, genetic testing for cystic fibrosis is available. As the genetic counselor, what would you recommend to the family?
a. Should III-1 be tested for the gene?
b. Should the baby's father be tested?
c. If the father is heterozygous, what is the likelihood of the child being affected?