MacConkey's agar and EMB agar are:
Understand the Problem
The question is asking about the characteristics of MacConkey's agar and EMB agar, specifically whether they are selective, differential, both, or neither. This involves knowledge of microbiological culture media.
Answer
Both selective and differential.
The final answer is both selective and differential.
Answer for screen readers
The final answer is both selective and differential.
More Information
MacConkey's and EMB agars inhibit Gram-positive bacteria while allowing the growth of Gram-negative organisms, also differentiating them based on lactose fermentation.
Tips
Ensure to understand the properties of selective and differential media. Selective media suppress unwanted microbes and encourage desired microbes. Differential media distinguish colonies of different bacteria.
Sources
- MacConkey agar - Wikipedia - en.wikipedia.org
- 22.2: Selective and Differential Media - MacConkey, EMB, MSA - bio.libretexts.org
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