E Coli 0157:H7 Produces Clear Colonies on MacConkey Agar, While

question 32

Multiple Choice

E. coli 0157:H7 produces clear colonies on MacConkey agar, while common strains of the organism produce pink colonies on this medium. The organism stains pink in the Gram stain. Select the True statement, given this information.

• A) E. coli 0157:H7 is Gram-positive AND is a normal constituent of the intestinal tract.
• B) E. coli 0157:H7 is a normal constituent of the intestinal tract AND does not ferment sorbitol.
• C) E. coli 0157:H7 does not ferment sorbitol AND is Gram negative.
• D) E. coli 0157:H7 does not ferment sorbitol AND is Gram-positive.
• E) E. coli 0157:H7 produces a toxin AND is a normal constituent of the intestinal tract.

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Definitions:

Merger

The combination of two or more companies into a single entity, usually by one company acquiring the assets and businesses of the other.

Consolidation

The act of combining multiple entities, assets, or processes into a single, more effective and efficient unit.

Short-form Merger

A method of merger where a parent company merges with a subsidiary and doesn't require approval from the subsidiary's shareholders.

Parent Corporation

A company that owns enough voting stock in another firm to control management and operations by influencing or electing its board of directors.