In performing a Gram's staining techniques, the mordant is
A. Malachite green
B. Safranin
C. Methylene blue
D. Gram's iodine
E. Crystal violet
Ans: D. Gram's iodine
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In transduction, bacterial cells
a. take up pieces of DNA that are released as other cells disintegrate. b. take up pieces of DNA through the use of a virus. c. replicate DNA molecules. d. make replicate copies of one another. e. generate their own DNA.
Which animal lacks a "true" coelom?
a. flatworms only b. annelids only c. roundworms only d. flatworms and annelids e. flatworms and roundworms
The division of the PNS that regulates the activity of cardiac and smooth muscles, organs, and glands is the Blank 1 of 1 system.
a. somatic b. autonomic c. sympathetic d. parasympathetic
Which of the following is NOT a symptom of Marfan syndrome?
A. Vision problems B. Blood vessel defects C. Loose joints D. Short stature E. All of these are symptoms of Marfan syndrome