Differential media is ?: (A) Nutrient agar, (B) Chocolate agar, (C) MacConkey's agar, (D) Tetrathionate broth
Answer is C. Ans. is 'c' i.e., MacConkey's agar Differential media A medium has substances which bring out different characteristics of bacteria and thus helping to distinguish between them. Example - MacConkey's medium. Remember MacConkey's medium acts both as indicator and differential media.