Multiple Choice
Escherichia coli strains have all the following properties, except
A) indole production.
B) fermentation of glucose and lactose.
C) methyl red (MR) positive, Voges-Proskauer (VP) negative.
D) can use citrate as a sole carbon source.
Correct Answer:
Verified
Correct Answer:
Verified
Q20: A microbiologist is reading a stool culture
Q21: You have isolated a bacterium from a
Q22: All of the following are characteristics of
Q23: Why can direct microscopy not be used
Q24: The Escherichia coli serotype O157:H7 is associated
Q26: What substance produced by the Salmonella spp.,
Q27: What enteric organism may produce a blue-violet
Q28: What organism possesses the Vi antigen?<br>A) Salmonella
Q29: What genus has the following characteristics: urea
Q30: Which of the following agars is not