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: Gynaecology & Obstetrics
Which of the following is ovary determining gene 
Select and explain. 
A. SRY, B. WNT - 4, C. SOX - 9, D. DAX 1
B: WNT - 4
Answer: B: WNT - 4 
Explanation: WNT - 4 is ovary determining gene.