Silvadene, a topical treatment for burns, contains 1% silver. What category of chemical control agent is in Silvadene?
A) halogens
B) heavy metals
C) oxidizing agents
D) aldehydes
E) surfactants
B
Bloom's Taxonomy: Comprehension
Section: Chemical Methods of Microbial Control
Learning Outcome: 9.25
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Vertebrate cells possess a protein that binds to clusters of 5-methylcytosine and ensures the gene will stay in the "off" position. This control of gene regulation is a result of
A. translation. B. enhancer expression. C. methylation. D. promoter expression. E. operator suppression.
An agent that would work well as an antibiotic against prokaryotic infection would target the
A) 50S large ribosomal subunit. B) RNA polymerase II. C) 40S small ribosomal subunit. D) DNA polymerase. E) mitochondria.
In order to transfer gene a to an F- cell, the sex pilus must be in place for at least ____ minutes
a. 0 b. 6 c. 10 d. 14 e. 25
Amphibians use lungs and ________ for gas exchange. a. None of these choices
b. gastrovascular cavity c. book lungs d. gills e. skin