This Reagent Is Used to Demonstrate a Positive Phenylalanine Deaminase $\alpha$

question 3

Multiple Choice

This reagent is used to demonstrate a positive phenylalanine deaminase test.

• A) 10% ferric chloride
• B) Methyl red
• C) \(\alpha\)-Naphthol
• D) 40% sodium hydroxide

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Definitions:

Paleolithic Painting

Prehistoric artworks found on cave walls or ceilings, primarily in Europe, dating back to the Paleolithic era, showcasing animals, human figures, and abstract signs.

Entrance

An opening, such as a door, passage, or gate, that allows access to a place.

Well Shaft

A vertical passage used in mining or for accessing underground water.

North America

A continent located in the northern hemisphere and almost entirely within the western hemisphere, comprising countries such as the United States, Canada, and Mexico.