The condition shown in this family has multiple possible modesof inheritance: X-linked recessive, autosomal dominant, andautosomal recessive. It is always one mode of inheritance for eachfamily (ie it doesn't change between people within the samefamily). Assume full penetrance and onset from birth.
You are trying to determine the mode of inheritance for thecondition in this family. Regardless of the gene it's on, finding asingle pathogenic mutation in who in this family (other than theaffected person) would allow you to determine the mode ofinheritance?
Select one:
a. The mother
b. The father
c. The sister
d. Finding a pathogenic mutation in no one individual will givethat information
