This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
The gene known to be associated with Cataract 
Select and explain. 
A. PAX6, B. FKHL7, C. CRYA4, D. CYP1B1
C: CRYA4
Answer: C: CRYA4 
Explanation: The gene known to be associated with Cataract is CRYA4.