Ross Is a Genetic Counselor Working with a Family That

Ross is a genetic counselor working with a family that has lost a child to an unidentified illness.The family tells him there have been other children in the family history who have died after having the same symptoms.As Ross examines several generations of the family's pedigree,he notices that females are affected as frequently as males and that parents never exhibit the symptoms.This information leads him to think this disorder has a(n)________ mode of inheritance.