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: Biochemistry
Chromosomal studies are done in which stage: 
Select and explain. 
A. Prophase, B. Metaphase, C. Telophase, D. Anaphase
B: Metaphase
Answer: B: Metaphase 
Explanation: Metaphase