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: Microbiology
HLA complex in man is located on chromosome: September 2003 
Select and explain. 
A. 4, B. 6, C. 8, D. 10Widal test
B: 6
Answer: B: 6 
Explanation: Ans. B i.e. 6