A media is designed that allows only staphylococci to grow.In addition, S.aureus colonies have a yellow halo around them and other staphylococci appear white.This type of media is
A)selective only.
B)differential only.
C)both selective and differential.
D)a reducing media.
E)enriched.

Question

Quizplus · Accepted Answer

The media described is both selective and differential. It selects for staphylococci by only allowing them to grow, while also allowing for differentiation between S.aureus (yellow halo) and other staphylococci (white colonies).

A Media Is Designed That Allows Only Staphylococci to Grow