Match the following items with the correct phrases.
_______1. Phenylethyl alcohol agar and Thayer-Martin agar.
_______2. MacConkey agar and mannitol salt agar.
_______3. Sabouraud dextrose agar.
_______4. Blood agar.
a. enriched and differential
b. enriched and selective
c. selective and differential
d. selective only
e. differential only
1. b. enriched and selective
2. c. selective and differential
3. d. selective only
4. a. enriched and differential
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Proper design of a urogenital swab expressly intended for the collection of urethral discharge should include what feature?
a. Charcoal-treated cotton or rayon b. Antibiotic-treated calcium alginate c. Non flexible Shaft of wood and not flexi-ble d. Dacron-tipped swabs
Which of the following represents a reversible reaction?
A. A + B ? AB B. AB + XY ? AY + XB C. AB ? A + B D. AB + XY ? AY + XB
In his 1771 experiments, Joseph Priestly determined that plants added something to the air that allow an animal to survive. What do we now know that plants contribute to the air that is essential for animals (and other organisms)?
A. oxygen B. water C. organic sugars D. carbon dioxide
Synthesizing amino acid sequences from messenger RNA is called
A) transduction. B) transformation. C) translation. D) transcription.