Of the choices, Schizophrenia is the most prevalent mental disorder that is considered to be genetically inheritable. Early adoptive studies showed that children of schizophrenics raised by adoptive parents were far more likely to become schizophrenics. Within the general population, schizophrenic parents are 10 times more likely to produce schizophrenic children.
Pedophilia is an adult's sexual attraction to children. There is no recognized familial pattern.
Gender Identity Disorder is diagnosed when a person has an overwhelming desire to live as a member of the opposite sex. There is no recognized familial pattern.
Factitious Disorder is diagnosed when one pretends to have physical or psychological symptoms in order to adopt the sick role. There is no recognized familial pattern.
Pica is the eating of nonnutritive substances. It is usually associated with mental retardation. There is no recognized familial pattern for Pica.