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PC Agar Is a Selective Media for Isolation of B

Question 21

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PC agar is a selective media for isolation of B.cepacia.What is the purpose of the polymixin B and ticarcillin in the media?


A) They provide nutrients to enrich the growth of B.cepacia.
B) They cause color change in the media from yellow to pink.
C) They inhibit growth of gram-positive and other gram-negative organisms.
D) They stabilize the media to support growth if prolonged incubation is needed.

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