Which of the following media differentiates between Enterococcus and Streptococcus?

A. Eosin Methylene Blue Agar
B. Bile Esculin Agar
C. Columbia CNA Agar
D. MacConkey Agar
E. Mannitol Salt Agar


Ans: B. Bile Esculin Agar

Biology & Microbiology

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The rolled tube method is most commonly used for isolating which grouping of microorganisms?

A) anaerobes B) chemolithotrophs C) chemoorganotrophs D) aerobes

Biology & Microbiology

For polymerase chain reaction to occur,

a primers must hydrogen-bond to the template DNA b. all DNA fragments must be identical. c the DNA must remain double stranded. d. a sticky end must be available for the ligase enzyme to function. e. all of these must occur.

Biology & Microbiology

Four of the five animals listed below possess the

same type of skeleton. Select the exception. a. beetle b. snake c. bird d. human e. frog

Biology & Microbiology

Comparative genome studies show that humans and _____________________ shared a common ancestor

approximately 5.4 to 6.3 million years ago. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology