Which of the Following Would Indicate That a Disease Has

Multiple Choice

Which of the following would indicate that a disease has a genetic, rather than environmental, cause?

A) The disease has a specific age of onset
B) A high level of concordance among monozygotic twins
C) The disease does not occur in individuals that are exposed to a similar environment
D) The disease is similar to a known genetic disease in an animal such as a mouse
E) All of the answers are correct