Imagine That a Doctor Is Presented with a Patient That

Multiple Choice

Imagine that a doctor is presented with a patient that lacks irises. What could be said of this patient?

A) This patient likely carries a loss-of-function mutation.
B) This patient could be diagnosed as having aniridia.
C) This patient likely carries a mutation in Pax6.
D) This patient may carry mutations in genes downstream of Pax6.
E) All of these choices are correct.