This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
Lactose fermentation is seen in? 
Select and explain. 
A. Blood agar, B. Chocolate agar, C. MacConkey agar, D. LJ medium
C: MacConkey agar
Answer: C: MacConkey agar 
Explanation: MacConkey's medium which consists of peptone, lactose agar, neutral red, and taurocholate shows up lactose fermenters as pink colonies while nonlactose fermenters are colorless or pale. This may be also termed as indicator medium REF:Ananthanarayan & Panicker's Textbook of Microbiology 8th Edition pg no: 41