This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
The differentiating feature of Neisseria gonococcus from Neisseria meningitidis is 
Select and explain. 
A. Lactose fermentation, B. Maltose fermentation, C. Mannitol fermentation, D. Sucrose fermentation
B: Maltose fermentation
Answer: B: Maltose fermentation 
Explanation: Gonococci resemble meningococci except that they acidify only glucose and not maltose in serum sugars while meningococci acidify both. Ref: Textbook of microbiology; Ananthanarayan and paniker's; 10th Edition; Pg:234